diff --git a/src/api/order.js b/src/api/order.js
index 47f1853..299ed10 100644
--- a/src/api/order.js
+++ b/src/api/order.js
@@ -12,13 +12,14 @@ export const order = {
    * → { orders: Order[], total: number, offset: number, limit: number }
    */
   // #region GET /api/order — list
-  list({ offset = 0, limit = 50, search, onlyUnpaid, onlyUndelivered, seekMonths } = {}) {
+  list({ offset = 0, limit = 50, search, onlyUnpaid, onlyUndelivered, seekMonths, entityId } = {}) {
     const params = new URLSearchParams();
     if (offset != null) params.set('offset', String(Math.max(0, Math.floor(Number(offset) || 0))));
     if (limit != null) params.set('limit', String(Math.max(1, Math.floor(Number(limit) || 50))));
     if (search && String(search).trim()) params.set('search', String(search).trim());
     if (onlyUnpaid === true || onlyUnpaid === 'true') params.set('onlyUnpaid', 'true');
     if (onlyUndelivered === true || onlyUndelivered === 'true') params.set('onlyUndelivered', 'true');
+    if (entityId != null) params.set('entityId', String(entityId));
     if (seekMonths != null && Number(seekMonths) < 0) {
       params.set('seekMonths', String(Math.floor(Number(seekMonths))));
     }
diff --git a/src/api/quote.js b/src/api/quote.js
index 27aae47..55af517 100644
--- a/src/api/quote.js
+++ b/src/api/quote.js
@@ -13,11 +13,12 @@ export const quote = {
    * → { quotes: QuoteSummary[], total: number, unfilteredTotal: number, offset: number, limit: number }
    */
   // #region GET /api/quote — list
-  list({ offset = 0, limit = 50, search, seekMonths } = {}) {
+  list({ offset = 0, limit = 50, search, seekMonths, entityId } = {}) {
     const params = new URLSearchParams();
     if (offset != null) params.set('offset', String(Math.max(0, Math.floor(Number(offset) || 0))));
     if (limit != null) params.set('limit', String(Math.max(1, Math.floor(Number(limit) || 50))));
     if (search && String(search).trim()) params.set('search', String(search).trim());
+    if (entityId != null) params.set('entityId', String(entityId));
     if (seekMonths != null && Number(seekMonths) < 0) {
       params.set('seekMonths', String(Math.floor(Number(seekMonths))));
     }
diff --git a/src/api/shipment.js b/src/api/shipment.js
index c02c50c..bdd3337 100644
--- a/src/api/shipment.js
+++ b/src/api/shipment.js
@@ -13,6 +13,7 @@ export const shipment = {
     if (params.search) q.set('search', String(params.search));
     if (params.state) q.set('state', String(params.state));
     if (params.orderId != null) q.set('orderId', String(params.orderId));
+    if (params.entityId != null) q.set('entityId', String(params.entityId));
     if (params.seekMonths != null) q.set('seekMonths', String(params.seekMonths));
     const qs = q.toString();
     return http(`/api/shipment${qs ? `?${qs}` : ''}`);
diff --git a/src/automats/orderAutomat.js b/src/automats/orderAutomat.js
index 068139f..0b9947b 100644
--- a/src/automats/orderAutomat.js
+++ b/src/automats/orderAutomat.js
@@ -69,6 +69,7 @@ const initialState = {
   filter: '',
   onlyUnpaid: false,
   onlyUndelivered: false,
+  entityId: null,
   seekMonths: 0,
   seekYears: 0,
   negativeSeekMonths: 0,
@@ -117,25 +118,27 @@ export function getFilterParams(state = automat?.state || initialState) {
   const filter = String(state.filter ?? '').trim();
   const onlyUnpaid = Boolean(state.onlyUnpaid);
   const onlyUndelivered = Boolean(state.onlyUndelivered);
+  const entityId = state.entityId != null && state.entityId !== '' ? Number(state.entityId) : null;
   const negativeSeekMonths = (state.negativeSeekMonths != null && Number(state.negativeSeekMonths) < 0)
     ? Number(state.negativeSeekMonths)
     : 0;
-  return { filter, onlyUnpaid, onlyUndelivered, negativeSeekMonths };
+  return { filter, onlyUnpaid, onlyUndelivered, entityId, negativeSeekMonths };
 }
 
 export function getFilterKey(state = automat?.state || initialState) {
-  const { filter, onlyUnpaid, onlyUndelivered, negativeSeekMonths } = getFilterParams(state);
-  return JSON.stringify({ f: filter, u: onlyUnpaid, d: onlyUndelivered, s: negativeSeekMonths });
+  const { filter, onlyUnpaid, onlyUndelivered, entityId, negativeSeekMonths } = getFilterParams(state);
+  return JSON.stringify({ f: filter, u: onlyUnpaid, d: onlyUndelivered, e: entityId, s: negativeSeekMonths });
 }
 
 export function formatFilterLabel(filterKeyOrState) {
-  let f, u, d, s;
+  let f, u, d, e, s;
   if (typeof filterKeyOrState === 'string') {
     try {
       const parsed = JSON.parse(filterKeyOrState);
       f = parsed.f;
       u = parsed.u;
       d = parsed.d;
+      e = parsed.e;
       s = parsed.s;
     } catch {
       return filterKeyOrState;
@@ -145,18 +148,21 @@ export function formatFilterLabel(filterKeyOrState) {
       f = filterKeyOrState.f;
       u = filterKeyOrState.u;
       d = filterKeyOrState.d;
+      e = filterKeyOrState.e;
       s = filterKeyOrState.s;
     } else {
       const params = getFilterParams(filterKeyOrState);
       f = params.filter;
       u = params.onlyUnpaid;
       d = params.onlyUndelivered;
+      e = params.entityId;
       s = params.negativeSeekMonths;
     }
   }
 
   const parts = [];
   if (f) parts.push(`Suche: „${f}“`);
+  if (e != null) parts.push(`Kunde: #${e}`);
   if (u) parts.push('Nur unbezahlt');
   if (d) parts.push('Nur ungeliefert');
   if (s < 0) parts.push(`Seek: ${formatNegativeSeek(s)}`);
@@ -498,6 +504,7 @@ function buildQueryParamsFor(filterParams, offset = 0, limit = CHUNK_SIZE) {
   if (trimmed) params.search = trimmed;
   if (filterParams.onlyUnpaid) params.onlyUnpaid = true;
   if (filterParams.onlyUndelivered) params.onlyUndelivered = true;
+  if (filterParams.entityId != null) params.entityId = filterParams.entityId;
   if (filterParams.negativeSeekMonths != null && Number(filterParams.negativeSeekMonths) < 0) {
     params.seekMonths = Number(filterParams.negativeSeekMonths);
   }
@@ -859,6 +866,12 @@ const actions = {
     onFilterChange(true);
   },
 
+  setEntityId(entityId) {
+    const parsed = entityId != null && entityId !== '' ? Number(entityId) : null;
+    automat.setState({ entityId: parsed });
+    onFilterChange(true);
+  },
+
   addSeekMonth() {
     const seekMonths = (automat.state.seekMonths ?? 0) + 1;
     const seekYears = automat.state.seekYears ?? 0;
diff --git a/src/automats/quoteAutomat.js b/src/automats/quoteAutomat.js
index 9bff67b..dc372ff 100644
--- a/src/automats/quoteAutomat.js
+++ b/src/automats/quoteAutomat.js
@@ -70,6 +70,7 @@ const initialState = {
   total: 0,
   unfilteredTotal: 0,
   filter: '',
+  entityId: null,
   seekMonths: 0,
   seekYears: 0,
   negativeSeekMonths: 0,
@@ -112,23 +113,25 @@ export function parseLruKey(key) {
 // MARK: pure filter helpers
 export function getFilterParams(state = automat?.state || initialState) {
   const filter = String(state.filter ?? '').trim();
+  const entityId = state.entityId != null && state.entityId !== '' ? Number(state.entityId) : null;
   const negativeSeekMonths = (state.negativeSeekMonths != null && Number(state.negativeSeekMonths) < 0)
     ? Number(state.negativeSeekMonths)
     : 0;
-  return { filter, negativeSeekMonths };
+  return { filter, entityId, negativeSeekMonths };
 }
 
 export function getFilterKey(state = automat?.state || initialState) {
-  const { filter, negativeSeekMonths } = getFilterParams(state);
-  return JSON.stringify({ f: filter, s: negativeSeekMonths });
+  const { filter, entityId, negativeSeekMonths } = getFilterParams(state);
+  return JSON.stringify({ f: filter, e: entityId, s: negativeSeekMonths });
 }
 
 export function formatFilterLabel(filterKeyOrState) {
-  let f, s;
+  let f, e, s;
   if (typeof filterKeyOrState === 'string') {
     try {
       const parsed = JSON.parse(filterKeyOrState);
       f = parsed.f;
+      e = parsed.e;
       s = parsed.s;
     } catch {
       return filterKeyOrState;
@@ -136,16 +139,19 @@ export function formatFilterLabel(filterKeyOrState) {
   } else if (filterKeyOrState && typeof filterKeyOrState === 'object') {
     if ('f' in filterKeyOrState) {
       f = filterKeyOrState.f;
+      e = filterKeyOrState.e;
       s = filterKeyOrState.s;
     } else {
       const params = getFilterParams(filterKeyOrState);
       f = params.filter;
+      e = params.entityId;
       s = params.negativeSeekMonths;
     }
   }
 
   const parts = [];
   if (f) parts.push(`Suche: „${f}“`);
+  if (e != null) parts.push(`Kunde: #${e}`);
   if (s < 0) parts.push(`Seek: ${formatNegativeSeek(s)}`);
   if (parts.length === 0) return 'Standard (Alle Angebote)';
   return parts.join(' · ');
@@ -439,6 +445,7 @@ function buildQueryParamsFor(filterParams, offset = 0, limit = CHUNK_SIZE) {
   const params = { offset, limit };
   const trimmed = String(filterParams.filter ?? '').trim();
   if (trimmed) params.search = trimmed;
+  if (filterParams.entityId != null) params.entityId = filterParams.entityId;
   if (filterParams.negativeSeekMonths != null && Number(filterParams.negativeSeekMonths) < 0) {
     params.seekMonths = Number(filterParams.negativeSeekMonths);
   }
@@ -777,6 +784,12 @@ const actions = {
     onFilterChange(false);
   },
 
+  setEntityId(entityId) {
+    const parsed = entityId != null && entityId !== '' ? Number(entityId) : null;
+    automat.setState({ entityId: parsed });
+    onFilterChange(true);
+  },
+
   addSeekMonth() {
     const seekMonths = (automat.state.seekMonths ?? 0) + 1;
     const seekYears = automat.state.seekYears ?? 0;
diff --git a/src/automats/shipmentAutomat.js b/src/automats/shipmentAutomat.js
index a56ddc8..a3927c3 100644
--- a/src/automats/shipmentAutomat.js
+++ b/src/automats/shipmentAutomat.js
@@ -64,6 +64,7 @@ const initialState = {
   unfilteredTotal: 0,
   filter: '',
   stateFilter: '',
+  entityId: null,
   seekMonths: 0,
   seekYears: 0,
   negativeSeekMonths: 0,
@@ -107,15 +108,16 @@ export function parseLruKey(key) {
 export function getFilterParams(state = automat?.state || initialState) {
   const filter = String(state.filter ?? '').trim();
   const stateFilter = String(state.stateFilter ?? '').trim();
+  const entityId = state.entityId != null && state.entityId !== '' ? Number(state.entityId) : null;
   const negativeSeekMonths = (state.negativeSeekMonths != null && Number(state.negativeSeekMonths) < 0)
     ? Number(state.negativeSeekMonths)
     : 0;
-  return { filter, stateFilter, negativeSeekMonths };
+  return { filter, stateFilter, entityId, negativeSeekMonths };
 }
 
 export function getFilterKey(state = automat?.state || initialState) {
-  const { filter, stateFilter, negativeSeekMonths } = getFilterParams(state);
-  return JSON.stringify({ f: filter, st: stateFilter, s: negativeSeekMonths });
+  const { filter, stateFilter, entityId, negativeSeekMonths } = getFilterParams(state);
+  return JSON.stringify({ f: filter, st: stateFilter, e: entityId, s: negativeSeekMonths });
 }
 
 export function formatNegativeSeek(months) {
@@ -134,12 +136,13 @@ export function formatNegativeSeek(months) {
 }
 
 export function formatFilterLabel(filterKeyOrState) {
-  let f, st, s;
+  let f, st, e, s;
   if (typeof filterKeyOrState === 'string') {
     try {
       const parsed = JSON.parse(filterKeyOrState);
       f = parsed.f;
       st = parsed.st;
+      e = parsed.e;
       s = parsed.s;
     } catch {
       return filterKeyOrState;
@@ -148,17 +151,20 @@ export function formatFilterLabel(filterKeyOrState) {
     if ('f' in filterKeyOrState) {
       f = filterKeyOrState.f;
       st = filterKeyOrState.st;
+      e = filterKeyOrState.e;
       s = filterKeyOrState.s;
     } else {
       const params = getFilterParams(filterKeyOrState);
       f = params.filter;
       st = params.stateFilter;
+      e = params.entityId;
       s = params.negativeSeekMonths;
     }
   }
 
   const parts = [];
   if (f) parts.push(`Suche: „${f}“`);
+  if (e != null) parts.push(`Kunde: #${e}`);
   if (st) parts.push(`Status: ${st}`);
   if (s < 0) parts.push(`Seek: ${formatNegativeSeek(s)}`);
   if (parts.length === 0) return 'Standard (Alle Lieferscheine)';
@@ -436,6 +442,7 @@ function buildQueryParamsFor(filterParams, offset = 0, limit = CHUNK_SIZE) {
   const trimmed = String(filterParams.filter ?? '').trim();
   if (trimmed) params.search = trimmed;
   if (filterParams.stateFilter) params.state = filterParams.stateFilter;
+  if (filterParams.entityId != null) params.entityId = filterParams.entityId;
   if (filterParams.negativeSeekMonths != null && Number(filterParams.negativeSeekMonths) < 0) {
     params.seekMonths = Number(filterParams.negativeSeekMonths);
   }
@@ -784,6 +791,12 @@ const actions = {
     onFilterChange(true);
   },
 
+  setEntityId(entityId) {
+    const parsed = entityId != null && entityId !== '' ? Number(entityId) : null;
+    automat.setState({ entityId: parsed });
+    onFilterChange(true);
+  },
+
   setSeekMonths(months) {
     actions.addNegativeSeek(-months);
   },
diff --git a/src/components/manifest/DeliveryList.jsx b/src/components/manifest/DeliveryList.jsx
index 3c1d272..da63c59 100644
--- a/src/components/manifest/DeliveryList.jsx
+++ b/src/components/manifest/DeliveryList.jsx
@@ -29,6 +29,7 @@ import { backendErrorFrom } from '../../utils/backendError';
 import { notifyError } from '../../utils/notify';
 import { getMaxDocumentNumber } from '../../utils/documentNumber';
 import BookDeliveryDialog from './BookDeliveryDialog';
+import PartyFilterPanel, { PartyFilterButton, PartyFilterChip } from './PartyFilterPanel';
 import withNavigate from '../withNavigate';
 import {
   formatDate,
@@ -442,7 +443,14 @@ class DeliverySearchField extends PureComponent {
   }
 
   render() {
-    const { inputRef, onCreate } = this.props;
+    const {
+      inputRef,
+      onCreate,
+      supplierFilterOpen,
+      onToggleSupplierFilter,
+      selectedSupplier,
+      onClearSupplierFilter,
+    } = this.props;
     const { input, onlyUnbooked, seekMonths, seekYears } = this.state;
     const monthActive = seekMonths > 0;
     const monthLabel = !monthActive ? '-1 Month' : `-${seekMonths} Month${seekMonths > 1 ? 's' : ''}`;
@@ -461,22 +469,34 @@ class DeliverySearchField extends PureComponent {
             pb: 2,
           }}
         >
-          {/* Top row: search field & create button */}
+          {/* Top row: search field, supplier filter button, active chip & create button */}
           <Box
             sx={{
               display: 'flex',
               alignItems: 'center',
               gap: 1,
+              flexWrap: 'wrap',
             }}
           >
             <SingleLineTextEdit
-              sx={{ flex: 1 }}
+              sx={{ flex: 1, minWidth: { xs: '100%', sm: 220 } }}
               size="small"
               search
               clear
               value={input}
               onChange={(next) => deliveryAutomat.actions.filter(next)}
             />
+            <PartyFilterButton
+              title="Lieferanten"
+              open={supplierFilterOpen}
+              onClick={onToggleSupplierFilter}
+            />
+            {selectedSupplier && (
+              <PartyFilterChip
+                label={partyDisplayName('delivery', selectedSupplier)}
+                onDelete={onClearSupplierFilter}
+              />
+            )}
             <Button variant="contained" onClick={onCreate}>
               {cfg.createButton}
             </Button>
@@ -635,7 +655,10 @@ export class DeliveryList extends PureComponent {
       items: deliveryAutomat.getItems(),
       unfilteredTotal: deliveryAutomat.state.unfilteredTotal ?? 0,
       filterKey: deliveryAutomat.getFilterKey?.() ?? '',
+      supplierId: deliveryAutomat.state.supplierId ?? null,
+      supplierFilterOpen: false,
       suppliersById: {},
+      suppliersList: [],
       busyId: null,
       bookingDoc: null,
       bookingOpen: false,
@@ -650,6 +673,8 @@ export class DeliveryList extends PureComponent {
     this.handleOpenBookDialog = this.handleOpenBookDialog.bind(this);
     this.handleCloseBookDialog = this.handleCloseBookDialog.bind(this);
     this.handleBookSuccess = this.handleBookSuccess.bind(this);
+    this.handleToggleSupplierFilter = this.handleToggleSupplierFilter.bind(this);
+    this.handleSelectSupplier = this.handleSelectSupplier.bind(this);
   }
 
   componentDidMount() {
@@ -658,12 +683,14 @@ export class DeliveryList extends PureComponent {
       items: state.items,
       unfilteredTotal: state.unfilteredTotal ?? 0,
       filterKey: deliveryAutomat.getFilterKey(state),
+      supplierId: state.supplierId ?? null,
     }));
     if (this.state.items !== deliveryAutomat.state.items) {
       this.setState({
         items: deliveryAutomat.state.items,
         unfilteredTotal: deliveryAutomat.state.unfilteredTotal ?? 0,
         filterKey: deliveryAutomat.getFilterKey(deliveryAutomat.state),
+        supplierId: deliveryAutomat.state.supplierId ?? null,
       });
     }
     this.unsubNumber = numberAutomat.subscribe(this, () => {
@@ -680,11 +707,22 @@ export class DeliveryList extends PureComponent {
     this.unsubNumber?.();
   }
 
+  handleToggleSupplierFilter() {
+    this.setState((prev) => ({ supplierFilterOpen: !prev.supplierFilterOpen }));
+  }
+
+  handleSelectSupplier(supplierId) {
+    deliveryAutomat.actions.setSupplierId(supplierId);
+  }
+
   async loadSuppliers() {
     try {
       const parties = await loadParties('delivery');
       if (!this._cancelled) {
-        this.setState({ suppliersById: cfg.partiesByIdFromList(parties) });
+        this.setState({
+          suppliersById: cfg.partiesByIdFromList(parties),
+          suppliersList: parties || [],
+        });
       }
     } catch {
       // Non-fatal: names fall back to ids.
@@ -750,7 +788,18 @@ export class DeliveryList extends PureComponent {
   }
 
   render() {
-    const { items, unfilteredTotal, filterKey, suppliersById, busyId, bookingDoc, bookingOpen } = this.state;
+    const {
+      items,
+      unfilteredTotal,
+      filterKey,
+      suppliersById,
+      suppliersList,
+      supplierId,
+      supplierFilterOpen,
+      busyId,
+      bookingDoc,
+      bookingOpen,
+    } = this.state;
 
     rowContext.suppliersById = suppliersById;
     rowContext.busyId = busyId;
@@ -759,10 +808,31 @@ export class DeliveryList extends PureComponent {
     rowContext.onOpenBookDialog = this.handleOpenBookDialog;
     rowContext.headerItem = this.headerItem;
 
+    const supplierCounts = {};
+    if (Array.isArray(items)) {
+      for (const d of items) {
+        if (d?.supplierId) {
+          supplierCounts[d.supplierId] = (supplierCounts[d.supplierId] || 0) + 1;
+        }
+      }
+    }
+    const selectedSupplier = supplierId ? (suppliersById[supplierId] || { id: supplierId, name: `Lieferant #${supplierId}` }) : null;
+
+    const searchField = (
+      <DeliverySearchField
+        inputRef={this.searchRef}
+        onCreate={this.handleCreate}
+        supplierFilterOpen={supplierFilterOpen}
+        onToggleSupplierFilter={this.handleToggleSupplierFilter}
+        selectedSupplier={selectedSupplier}
+        onClearSupplierFilter={() => this.handleSelectSupplier(null)}
+      />
+    );
+
     if (items === null && deliveryAutomat.state.status === 'failed') {
       return (
         <>
-          <DeliverySearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
+          {searchField}
           <PanelTileGrid>
             <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ p: 2 }}>
               <BackendError error={backendErrorFrom(deliveryAutomat.state.error)} onRetry={this.handleRetry} />
@@ -778,64 +848,79 @@ export class DeliveryList extends PureComponent {
 
     return (
       <>
-        <DeliverySearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
-        <PanelTileGrid>
-          <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
-            <FillSpace
-              aboveRef={[this.searchRef]}
-              reserveBottom={32}
-              minPageSize={8}
-              minHeight={0}
-              resetKey={filterKey}
-              items={items || []}
-              totalCount={items ? items.length : 0}
-              unfilteredTotal={unfilteredTotal}
-              headerItem={this.headerItem}
-              renderItem={DeliveryRow}
-              virtualScrollbar
-              header={
-                <Box
-                  sx={{
-                    ...rowGridSx,
-                    height: 36,
-                    minHeight: 36,
-                    px: 2,
-                    borderBottom: '1px solid',
-                    borderColor: 'divider',
-                  }}
-                >
-                  {renderInvisibleDummyRow(this.headerItem)}
-                  <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr. / Ref.</Box>
-                  <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Lieferung</Box>
-                  <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Lieferant</Box>
-                  <Box sx={{ gridColumn: 4, gridRow: 2, ...headerCellSx }}>Lagerbuchung</Box>
-                  <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
-                  <Box sx={{ gridColumn: 6, gridRow: 2, ...headerCellSx }}>Anhänge</Box>
-                  <Box sx={{ gridColumn: 7, gridRow: 2, ...headerCellSx }} />
-                </Box>
-              }
-              onPageChange={this.handlePageChange}
+        {searchField}
+        <Box sx={{ display: 'flex', gap: 2.5, alignItems: 'stretch' }}>
+          {supplierFilterOpen && (
+            <PartyFilterPanel
+              title="Lieferanten"
+              parties={suppliersList}
+              selectedId={supplierId}
+              onSelect={this.handleSelectSupplier}
+              onClose={this.handleToggleSupplierFilter}
+              counts={supplierCounts}
+              searchPlaceholder="Lieferant suchen…"
             />
-            {items === null && (
-              <Box
-                sx={{
-                  position: 'absolute',
-                  top: 52,
-                  left: 0,
-                  right: 0,
-                  bottom: 32,
-                  display: 'flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  pointerEvents: 'none',
-                  zIndex: 2,
-                }}
-              >
-                <CircularProgress size={32} />
-              </Box>
-            )}
-          </PanelTile>
-        </PanelTileGrid>
+          )}
+          <Box sx={{ flexGrow: 1, minWidth: 0 }}>
+            <PanelTileGrid>
+              <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
+                <FillSpace
+                  aboveRef={[this.searchRef]}
+                  reserveBottom={32}
+                  minPageSize={8}
+                  minHeight={0}
+                  resetKey={filterKey}
+                  items={items || []}
+                  totalCount={items ? items.length : 0}
+                  unfilteredTotal={unfilteredTotal}
+                  headerItem={this.headerItem}
+                  renderItem={DeliveryRow}
+                  virtualScrollbar
+                  header={
+                    <Box
+                      sx={{
+                        ...rowGridSx,
+                        height: 36,
+                        minHeight: 36,
+                        px: 2,
+                        borderBottom: '1px solid',
+                        borderColor: 'divider',
+                      }}
+                    >
+                      {renderInvisibleDummyRow(this.headerItem)}
+                      <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr. / Ref.</Box>
+                      <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Lieferung</Box>
+                      <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Lieferant</Box>
+                      <Box sx={{ gridColumn: 4, gridRow: 2, ...headerCellSx }}>Lagerbuchung</Box>
+                      <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
+                      <Box sx={{ gridColumn: 6, gridRow: 2, ...headerCellSx }}>Anhänge</Box>
+                      <Box sx={{ gridColumn: 7, gridRow: 2, ...headerCellSx }} />
+                    </Box>
+                  }
+                  onPageChange={this.handlePageChange}
+                />
+                {items === null && (
+                  <Box
+                    sx={{
+                      position: 'absolute',
+                      top: 52,
+                      left: 0,
+                      right: 0,
+                      bottom: 32,
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      pointerEvents: 'none',
+                      zIndex: 2,
+                    }}
+                  >
+                    <CircularProgress size={32} />
+                  </Box>
+                )}
+              </PanelTile>
+            </PanelTileGrid>
+          </Box>
+        </Box>
 
         <BookDeliveryDialog
           open={bookingOpen}
diff --git a/src/components/manifest/OrderList.jsx b/src/components/manifest/OrderList.jsx
index ca6c5dd..e73630d 100644
--- a/src/components/manifest/OrderList.jsx
+++ b/src/components/manifest/OrderList.jsx
@@ -32,6 +32,7 @@ import { backendErrorFrom } from '../../utils/backendError';
 import { notifyError } from '../../utils/notify';
 import { formatPrice } from '../../utils/price';
 import { getMaxDocumentNumber } from '../../utils/documentNumber';
+import PartyFilterPanel, { PartyFilterButton, PartyFilterChip } from './PartyFilterPanel';
 import withNavigate from '../withNavigate';
 import {
   formatDate,
@@ -333,7 +334,14 @@ class OrderSearchField extends PureComponent {
   }
 
   render() {
-    const { inputRef, onCreate } = this.props;
+    const {
+      inputRef,
+      onCreate,
+      customerFilterOpen,
+      onToggleCustomerFilter,
+      selectedCustomer,
+      onClearCustomerFilter,
+    } = this.props;
     const { input, onlyUnpaid, onlyUndelivered, seekMonths, seekYears } = this.state;
     const monthActive = seekMonths > 0;
     const monthLabel = !monthActive ? '-1 Month' : `-${seekMonths} Month${seekMonths > 1 ? 's' : ''}`;
@@ -352,22 +360,34 @@ class OrderSearchField extends PureComponent {
             pb: 2,
           }}
         >
-          {/* Top row: search field & create button */}
+          {/* Top row: search field, customer filter button, active chip & create button */}
           <Box
             sx={{
               display: 'flex',
               alignItems: 'center',
               gap: 1,
+              flexWrap: 'wrap',
             }}
           >
             <SingleLineTextEdit
-              sx={{ flex: 1 }}
+              sx={{ flex: 1, minWidth: { xs: '100%', sm: 220 } }}
               size="small"
               search
               clear
               value={input}
               onChange={(next) => orderAutomat.actions.filter(next)}
             />
+            <PartyFilterButton
+              title="Kunden"
+              open={customerFilterOpen}
+              onClick={onToggleCustomerFilter}
+            />
+            {selectedCustomer && (
+              <PartyFilterChip
+                label={partyDisplayName('order', selectedCustomer)}
+                onDelete={onClearCustomerFilter}
+              />
+            )}
             <Button variant="contained" onClick={onCreate}>
               {cfg.createButton}
             </Button>
@@ -548,7 +568,10 @@ export class OrderList extends PureComponent {
       items: orderAutomat.getItems(),
       unfilteredTotal: orderAutomat.state.unfilteredTotal ?? 0,
       filterKey: orderAutomat.getFilterKey?.() ?? '',
+      entityId: orderAutomat.state.entityId ?? null,
+      customerFilterOpen: false,
       partiesById: {},
+      partiesList: [],
       busyId: null,
     };
     this.searchRef = createRef();
@@ -560,6 +583,8 @@ export class OrderList extends PureComponent {
     this.handleTogglePaid = this.handleTogglePaid.bind(this);
     this.handleToggleDelivered = this.handleToggleDelivered.bind(this);
     this.handlePageChange = this.handlePageChange.bind(this);
+    this.handleToggleCustomerFilter = this.handleToggleCustomerFilter.bind(this);
+    this.handleSelectCustomer = this.handleSelectCustomer.bind(this);
   }
 
   componentDidMount() {
@@ -568,6 +593,7 @@ export class OrderList extends PureComponent {
       items: state.items,
       unfilteredTotal: state.unfilteredTotal ?? 0,
       filterKey: orderAutomat.getFilterKey(state),
+      entityId: state.entityId ?? null,
     }));
     this.unsubNumber = numberAutomat.subscribe(this, () => {
       this.headerItem = createDummyTestOrder();
@@ -583,11 +609,22 @@ export class OrderList extends PureComponent {
     this.unsubNumber?.();
   }
 
+  handleToggleCustomerFilter() {
+    this.setState((prev) => ({ customerFilterOpen: !prev.customerFilterOpen }));
+  }
+
+  handleSelectCustomer(entityId) {
+    orderAutomat.actions.setEntityId(entityId);
+  }
+
   async loadParties() {
     try {
       const parties = await loadParties('order');
       if (!this._cancelled) {
-        this.setState({ partiesById: cfg.partiesByIdFromList(parties) });
+        this.setState({
+          partiesById: cfg.partiesByIdFromList(parties),
+          partiesList: parties || [],
+        });
       }
     } catch {
       // Non-fatal: names fall back to ids.
@@ -663,7 +700,16 @@ export class OrderList extends PureComponent {
   }
 
   render() {
-    const { items, unfilteredTotal, filterKey, partiesById, busyId } = this.state;
+    const {
+      items,
+      unfilteredTotal,
+      filterKey,
+      partiesById,
+      partiesList,
+      entityId,
+      customerFilterOpen,
+      busyId,
+    } = this.state;
 
     rowContext.partiesById = partiesById;
     rowContext.busyId = busyId;
@@ -673,10 +719,31 @@ export class OrderList extends PureComponent {
     rowContext.onToggleDelivered = this.handleToggleDelivered;
     rowContext.headerItem = this.headerItem;
 
+    const customerCounts = {};
+    if (Array.isArray(items)) {
+      for (const ord of items) {
+        if (ord?.entityId) {
+          customerCounts[ord.entityId] = (customerCounts[ord.entityId] || 0) + 1;
+        }
+      }
+    }
+    const selectedCustomer = entityId ? (partiesById[entityId] || { id: entityId, name: `Kunde #${entityId}` }) : null;
+
+    const searchField = (
+      <OrderSearchField
+        inputRef={this.searchRef}
+        onCreate={this.handleCreate}
+        customerFilterOpen={customerFilterOpen}
+        onToggleCustomerFilter={this.handleToggleCustomerFilter}
+        selectedCustomer={selectedCustomer}
+        onClearCustomerFilter={() => this.handleSelectCustomer(null)}
+      />
+    );
+
     if (items === null && orderAutomat.state.status === 'failed') {
       return (
         <>
-          <OrderSearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
+          {searchField}
           <PanelTileGrid>
             <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ p: 2 }}>
               <BackendError error={backendErrorFrom(orderAutomat.state.error)} onRetry={this.handleRetry} />
@@ -688,73 +755,88 @@ export class OrderList extends PureComponent {
 
     return (
       <>
-        <OrderSearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
-        <PanelTileGrid>
-          <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
-            <FillSpace
-              aboveRef={[this.searchRef]}
-              reserveBottom={32}
-              minPageSize={8}
-              minHeight={0}
-              resetKey={filterKey}
-              items={items || []}
-              totalCount={items ? items.length : 0}
-              unfilteredTotal={unfilteredTotal}
-              headerItem={this.headerItem}
-              renderItem={OrderRow}
-              virtualScrollbar
-              header={
-                <Box
-                  sx={{
-                    ...rowGridSx,
-                    height: 36,
-                    minHeight: 36,
-                    px: 2,
-                    borderBottom: '1px solid',
-                    borderColor: 'divider',
-                  }}
-                >
-                  {renderInvisibleDummyRow(this.headerItem)}
-                  <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr. / Ref.</Box>
-                  <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
-                  <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Kunde</Box>
-                  <Box sx={{ gridColumn: 4, gridRow: 2, display: 'flex', justifyContent: 'center', alignItems: 'center', ...headerCellSx }}>
-                    <Tooltip title="Bezahlt">
-                      <PaymentsOutlinedIcon sx={{ fontSize: 18 }} />
-                    </Tooltip>
-                  </Box>
-                  <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', alignItems: 'center', ...headerCellSx }}>
-                    <Tooltip title="Geliefert">
-                      <LocalShippingOutlinedIcon sx={{ fontSize: 18 }} />
-                    </Tooltip>
-                  </Box>
-                  <Box sx={{ gridColumn: 6, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
-                  <Box sx={{ gridColumn: 7, gridRow: 2, textAlign: 'right', ...headerCellSx }}>Gesamt</Box>
-                  <Box sx={{ gridColumn: 8, gridRow: 2, ...headerCellSx }} />
-                </Box>
-              }
-              onPageChange={this.handlePageChange}
+        {searchField}
+        <Box sx={{ display: 'flex', gap: 2.5, alignItems: 'stretch' }}>
+          {customerFilterOpen && (
+            <PartyFilterPanel
+              title="Kunden"
+              parties={partiesList}
+              selectedId={entityId}
+              onSelect={this.handleSelectCustomer}
+              onClose={this.handleToggleCustomerFilter}
+              counts={customerCounts}
+              searchPlaceholder="Kunde suchen…"
             />
-            {items === null && (
-              <Box
-                sx={{
-                  position: 'absolute',
-                  top: 52,
-                  left: 0,
-                  right: 0,
-                  bottom: 32,
-                  display: 'flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  pointerEvents: 'none',
-                  zIndex: 2,
-                }}
-              >
-                <CircularProgress size={32} />
-              </Box>
-            )}
-          </PanelTile>
-        </PanelTileGrid>
+          )}
+          <Box sx={{ flexGrow: 1, minWidth: 0 }}>
+            <PanelTileGrid>
+              <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
+                <FillSpace
+                  aboveRef={[this.searchRef]}
+                  reserveBottom={32}
+                  minPageSize={8}
+                  minHeight={0}
+                  resetKey={filterKey}
+                  items={items || []}
+                  totalCount={items ? items.length : 0}
+                  unfilteredTotal={unfilteredTotal}
+                  headerItem={this.headerItem}
+                  renderItem={OrderRow}
+                  virtualScrollbar
+                  header={
+                    <Box
+                      sx={{
+                        ...rowGridSx,
+                        height: 36,
+                        minHeight: 36,
+                        px: 2,
+                        borderBottom: '1px solid',
+                        borderColor: 'divider',
+                      }}
+                    >
+                      {renderInvisibleDummyRow(this.headerItem)}
+                      <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr. / Ref.</Box>
+                      <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
+                      <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Kunde</Box>
+                      <Box sx={{ gridColumn: 4, gridRow: 2, display: 'flex', justifyContent: 'center', alignItems: 'center', ...headerCellSx }}>
+                        <Tooltip title="Bezahlt">
+                          <PaymentsOutlinedIcon sx={{ fontSize: 18 }} />
+                        </Tooltip>
+                      </Box>
+                      <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', alignItems: 'center', ...headerCellSx }}>
+                        <Tooltip title="Geliefert">
+                          <LocalShippingOutlinedIcon sx={{ fontSize: 18 }} />
+                        </Tooltip>
+                      </Box>
+                      <Box sx={{ gridColumn: 6, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
+                      <Box sx={{ gridColumn: 7, gridRow: 2, textAlign: 'right', ...headerCellSx }}>Gesamt</Box>
+                      <Box sx={{ gridColumn: 8, gridRow: 2, ...headerCellSx }} />
+                    </Box>
+                  }
+                  onPageChange={this.handlePageChange}
+                />
+                {items === null && (
+                  <Box
+                    sx={{
+                      position: 'absolute',
+                      top: 52,
+                      left: 0,
+                      right: 0,
+                      bottom: 32,
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      pointerEvents: 'none',
+                      zIndex: 2,
+                    }}
+                  >
+                    <CircularProgress size={32} />
+                  </Box>
+                )}
+              </PanelTile>
+            </PanelTileGrid>
+          </Box>
+        </Box>
       </>
     );
   }
diff --git a/src/components/manifest/PartyFilterPanel.jsx b/src/components/manifest/PartyFilterPanel.jsx
new file mode 100644
index 0000000..aa85ba2
--- /dev/null
+++ b/src/components/manifest/PartyFilterPanel.jsx
@@ -0,0 +1,306 @@
+import { PureComponent } from 'react';
+import Box from '@mui/material/Box';
+import Button from '@mui/material/Button';
+import Chip from '@mui/material/Chip';
+import IconButton from '@mui/material/IconButton';
+import InputAdornment from '@mui/material/InputAdornment';
+import List from '@mui/material/List';
+import ListItemButton from '@mui/material/ListItemButton';
+import ListItemText from '@mui/material/ListItemText';
+import Paper from '@mui/material/Paper';
+import TextField from '@mui/material/TextField';
+import Typography from '@mui/material/Typography';
+import ChevronLeftIcon from '@mui/icons-material/ChevronLeft';
+import ClearIcon from '@mui/icons-material/Clear';
+import ExpandLessIcon from '@mui/icons-material/ExpandLess';
+import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
+import FilterListIcon from '@mui/icons-material/FilterList';
+import SearchIcon from '@mui/icons-material/Search';
+import { entityDisplayName } from './manifestConfig';
+
+/**
+ * Filter toggle button matching the /artikel dropdown style.
+ */
+export class PartyFilterButton extends PureComponent {
+  render() {
+    const {
+      title,
+      open,
+      onClick,
+      disabled = false,
+      sx,
+    } = this.props;
+
+    return (
+      <Button
+        variant={open ? 'contained' : 'outlined'}
+        color="inherit"
+        disabled={disabled}
+        onClick={onClick}
+        startIcon={<FilterListIcon />}
+        endIcon={open ? <ExpandLessIcon /> : <ExpandMoreIcon />}
+        sx={{
+          height: 36,
+          whiteSpace: 'nowrap',
+          flexShrink: 0,
+          textTransform: 'none',
+          fontWeight: open ? 600 : 500,
+          ...sx,
+        }}
+      >
+        {title}
+      </Button>
+    );
+  }
+}
+
+/**
+ * Active filter chip displayed next to the search/filter controls.
+ */
+export class PartyFilterChip extends PureComponent {
+  render() {
+    const { label, onDelete, sx } = this.props;
+    if (!label) return null;
+
+    return (
+      <Chip
+        label={label}
+        color="primary"
+        variant="outlined"
+        onDelete={onDelete}
+        sx={{
+          height: 36,
+          borderRadius: 1.5,
+          fontWeight: 500,
+          flexShrink: 0,
+          ...sx,
+        }}
+      />
+    );
+  }
+}
+
+/**
+ * Side-panel list of parties (suppliers / customers) with live search and count badges.
+ */
+export default class PartyFilterPanel extends PureComponent {
+  constructor(props) {
+    super(props);
+    this.state = {
+      search: '',
+    };
+  }
+
+  handleSearchChange = (e) => {
+    this.setState({ search: e.target.value });
+  };
+
+  handleClearSearch = () => {
+    this.setState({ search: '' });
+  };
+
+  getPartyName(party) {
+    if (!party) return '';
+    if (typeof party === 'string') return party;
+    if (party.firstName || party.customergroupId) {
+      return entityDisplayName(party);
+    }
+    return party.name || party.firstName || `ID #${party.id}`;
+  }
+
+  render() {
+    const {
+      title,
+      parties = [],
+      selectedId,
+      onSelect,
+      onClose,
+      counts = {},
+      searchPlaceholder,
+      width = 250,
+    } = this.props;
+    const { search } = this.state;
+
+    const term = search.trim().toLowerCase();
+
+    // Filter by internal search
+    const filtered = parties.filter((p) => {
+      if (!term) return true;
+      const name = this.getPartyName(p).toLowerCase();
+      const number = String(p.number ?? '').toLowerCase();
+      const city = String(p.city ?? '').toLowerCase();
+      return name.includes(term) || number.includes(term) || city.includes(term);
+    });
+
+    // Sort: selected first, then by count descending, then alphabetically
+    const sorted = [...filtered].sort((a, b) => {
+      const aSelected = String(a.id) === String(selectedId);
+      const bSelected = String(b.id) === String(selectedId);
+      if (aSelected && !bSelected) return -1;
+      if (!aSelected && bSelected) return 1;
+
+      const aCount = counts[a.id] || 0;
+      const bCount = counts[b.id] || 0;
+      if (bCount !== aCount) return bCount - aCount;
+
+      const aName = this.getPartyName(a);
+      const bName = this.getPartyName(b);
+      return aName.localeCompare(bName, 'de');
+    });
+
+    return (
+      <Box
+        sx={{
+          width,
+          flexShrink: 0,
+          position: 'relative',
+        }}
+      >
+        <Paper
+          variant="outlined"
+          sx={{
+            position: 'absolute',
+            inset: 0,
+            boxSizing: 'border-box',
+            display: 'flex',
+            flexDirection: 'column',
+            overflow: 'hidden',
+            borderRadius: 3,
+            bgcolor: 'background.paper',
+            boxShadow: 1,
+          }}
+        >
+          {/* Header */}
+          <Box
+            sx={{
+              px: 2,
+              py: 1.25,
+              bgcolor: 'action.hover',
+              display: 'flex',
+              alignItems: 'center',
+              justifyContent: 'space-between',
+              borderBottom: '1px solid',
+              borderColor: 'divider',
+              flexShrink: 0,
+            }}
+          >
+            <Typography variant="subtitle2" sx={{ fontWeight: 600 }}>
+              {title}
+            </Typography>
+            <IconButton
+              size="small"
+              onClick={onClose}
+              title={`${title} einklappen`}
+              aria-label={`${title} einklappen`}
+            >
+              <ChevronLeftIcon fontSize="small" />
+            </IconButton>
+          </Box>
+
+          {/* Quick filter input */}
+          <Box sx={{ p: 1, borderBottom: '1px solid', borderColor: 'divider', flexShrink: 0 }}>
+            <TextField
+              size="small"
+              fullWidth
+              autoComplete="off"
+              placeholder={searchPlaceholder || `${title} suchen…`}
+              value={search}
+              onChange={this.handleSearchChange}
+              slotProps={{
+                input: {
+                  sx: { height: 32, fontSize: '0.8125rem' },
+                  startAdornment: (
+                    <InputAdornment position="start">
+                      <SearchIcon sx={{ fontSize: 18 }} color="action" />
+                    </InputAdornment>
+                  ),
+                  endAdornment: search ? (
+                    <InputAdornment position="end">
+                      <IconButton
+                        size="small"
+                        onClick={this.handleClearSearch}
+                        onMouseDown={(e) => e.preventDefault()}
+                      >
+                        <ClearIcon sx={{ fontSize: 16 }} />
+                      </IconButton>
+                    </InputAdornment>
+                  ) : null,
+                },
+              }}
+            />
+          </Box>
+
+          {/* Parties list */}
+          <List dense disablePadding sx={{ flexGrow: 1, overflowY: 'auto' }}>
+            {sorted.length === 0 ? (
+              <Box sx={{ p: 2, textAlign: 'center' }}>
+                <Typography variant="body2" color="text.secondary">
+                  Keine Treffer
+                </Typography>
+              </Box>
+            ) : (
+              sorted.map((party) => {
+                const isSelected = String(party.id) === String(selectedId);
+                const name = this.getPartyName(party);
+                const count = counts[party.id] || 0;
+                const label = count > 0 ? `${name} (${count})` : name;
+                const details = party.number ? `Nr. ${party.number}` : null;
+
+                return (
+                  <ListItemButton
+                    key={party.id}
+                    selected={isSelected}
+                    onMouseDown={(e) => e.preventDefault()}
+                    onClick={() => onSelect?.(isSelected ? null : party.id)}
+                    sx={{
+                      px: 2,
+                      py: 0.75,
+                      '&.Mui-selected': {
+                        bgcolor: 'primary.light',
+                        color: 'primary.contrastText',
+                        '&:hover': {
+                          bgcolor: 'primary.main',
+                        },
+                      },
+                    }}
+                  >
+                    <ListItemText
+                      primary={label}
+                      secondary={details}
+                      slotProps={{
+                        primary: {
+                          variant: 'body2',
+                          noWrap: true,
+                          sx: { fontWeight: isSelected ? 600 : 400 },
+                        },
+                        secondary: {
+                          variant: 'caption',
+                          noWrap: true,
+                          sx: {
+                            color: isSelected ? 'inherit' : 'text.secondary',
+                            opacity: isSelected ? 0.8 : 1,
+                          },
+                        },
+                      }}
+                    />
+                    {isSelected && (
+                      <ClearIcon
+                        fontSize="small"
+                        sx={{
+                          ml: 1,
+                          flexShrink: 0,
+                          fontSize: 16,
+                          color: isSelected ? 'inherit' : 'action.active',
+                        }}
+                      />
+                    )}
+                  </ListItemButton>
+                );
+              })
+            )}
+          </List>
+        </Paper>
+      </Box>
+    );
+  }
+}
diff --git a/src/components/manifest/QuoteList.jsx b/src/components/manifest/QuoteList.jsx
index 21ce0d1..8392a2b 100644
--- a/src/components/manifest/QuoteList.jsx
+++ b/src/components/manifest/QuoteList.jsx
@@ -24,6 +24,7 @@ import { backendErrorFrom } from '../../utils/backendError';
 import { notifyError } from '../../utils/notify';
 import { formatPrice } from '../../utils/price';
 import { getMaxDocumentNumber } from '../../utils/documentNumber';
+import PartyFilterPanel, { PartyFilterButton, PartyFilterChip } from './PartyFilterPanel';
 import withNavigate from '../withNavigate';
 import {
   formatDate,
@@ -385,7 +386,14 @@ class QuoteSearchField extends PureComponent {
   }
 
   render() {
-    const { inputRef, onCreate } = this.props;
+    const {
+      inputRef,
+      onCreate,
+      customerFilterOpen,
+      onToggleCustomerFilter,
+      selectedCustomer,
+      onClearCustomerFilter,
+    } = this.props;
     const { input, seekMonths, seekYears } = this.state;
     const monthActive = seekMonths > 0;
     const monthLabel = !monthActive ? '-1 Month' : `-${seekMonths} Month${seekMonths > 1 ? 's' : ''}`;
@@ -420,6 +428,17 @@ class QuoteSearchField extends PureComponent {
               value={input}
               onChange={(next) => quoteAutomat.actions.filter(next)}
             />
+            <PartyFilterButton
+              title="Kunden"
+              open={customerFilterOpen}
+              onClick={onToggleCustomerFilter}
+            />
+            {selectedCustomer && (
+              <PartyFilterChip
+                label={partyDisplayName('quote', selectedCustomer)}
+                onDelete={onClearCustomerFilter}
+              />
+            )}
             <Button variant="contained" onClick={onCreate}>
               {cfg.createButton}
             </Button>
@@ -549,7 +568,10 @@ export class QuoteList extends PureComponent {
       items: quoteAutomat.getItems(),
       unfilteredTotal: quoteAutomat.state.unfilteredTotal ?? 0,
       filterKey: quoteAutomat.getFilterKey?.() ?? '',
+      entityId: quoteAutomat.state.entityId ?? null,
+      customerFilterOpen: false,
       partiesById: {},
+      partiesList: [],
       busyId: null,
     };
     this.searchRef = createRef();
@@ -559,6 +581,8 @@ export class QuoteList extends PureComponent {
     this.handleOpen = this.handleOpen.bind(this);
     this.handleDelete = this.handleDelete.bind(this);
     this.handlePageChange = this.handlePageChange.bind(this);
+    this.handleToggleCustomerFilter = this.handleToggleCustomerFilter.bind(this);
+    this.handleSelectCustomer = this.handleSelectCustomer.bind(this);
   }
 
   componentDidMount() {
@@ -567,6 +591,7 @@ export class QuoteList extends PureComponent {
       items: state.items,
       unfilteredTotal: state.unfilteredTotal ?? 0,
       filterKey: quoteAutomat.getFilterKey(state),
+      entityId: state.entityId ?? null,
     }));
     this.unsubNumber = numberAutomat.subscribe(this, () => {
       this.headerItem = createDummyTestQuote();
@@ -582,11 +607,22 @@ export class QuoteList extends PureComponent {
     this.unsubNumber?.();
   }
 
+  handleToggleCustomerFilter() {
+    this.setState((prev) => ({ customerFilterOpen: !prev.customerFilterOpen }));
+  }
+
+  handleSelectCustomer(entityId) {
+    quoteAutomat.actions.setEntityId(entityId);
+  }
+
   async loadParties() {
     try {
       const parties = await loadParties('quote');
       if (!this._cancelled) {
-        this.setState({ partiesById: cfg.partiesByIdFromList(parties) });
+        this.setState({
+          partiesById: cfg.partiesByIdFromList(parties),
+          partiesList: parties || [],
+        });
       }
     } catch {
       // Non-fatal: names fall back to ids or customerName.
@@ -642,7 +678,16 @@ export class QuoteList extends PureComponent {
   }
 
   render() {
-    const { items, unfilteredTotal, filterKey, partiesById, busyId } = this.state;
+    const {
+      items,
+      unfilteredTotal,
+      filterKey,
+      entityId,
+      customerFilterOpen,
+      partiesById,
+      partiesList,
+      busyId,
+    } = this.state;
 
     rowContext.partiesById = partiesById;
     rowContext.busyId = busyId;
@@ -650,10 +695,31 @@ export class QuoteList extends PureComponent {
     rowContext.onDelete = this.handleDelete;
     rowContext.headerItem = this.headerItem;
 
+    const customerCounts = {};
+    if (Array.isArray(items)) {
+      for (const q of items) {
+        if (q?.entityId) {
+          customerCounts[q.entityId] = (customerCounts[q.entityId] || 0) + 1;
+        }
+      }
+    }
+    const selectedCustomer = entityId ? (partiesById[entityId] || { id: entityId, name: `Kunde #${entityId}` }) : null;
+
+    const searchField = (
+      <QuoteSearchField
+        inputRef={this.searchRef}
+        onCreate={this.handleCreate}
+        customerFilterOpen={customerFilterOpen}
+        onToggleCustomerFilter={this.handleToggleCustomerFilter}
+        selectedCustomer={selectedCustomer}
+        onClearCustomerFilter={() => this.handleSelectCustomer(null)}
+      />
+    );
+
     if (items === null && quoteAutomat.state.status === 'failed') {
       return (
         <>
-          <QuoteSearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
+          {searchField}
           <PanelTileGrid>
             <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ p: 2 }}>
               <BackendError error={backendErrorFrom(quoteAutomat.state.error)} onRetry={this.handleRetry} />
@@ -665,64 +731,79 @@ export class QuoteList extends PureComponent {
 
     return (
       <>
-        <QuoteSearchField inputRef={this.searchRef} onCreate={this.handleCreate} />
-        <PanelTileGrid>
-          <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
-            <FillSpace
-              aboveRef={[this.searchRef]}
-              reserveBottom={32}
-              minPageSize={8}
-              minHeight={0}
-              resetKey={filterKey}
-              items={items || []}
-              totalCount={items ? items.length : 0}
-              unfilteredTotal={unfilteredTotal}
-              headerItem={this.headerItem}
-              renderItem={QuoteRow}
-              virtualScrollbar
-              header={
-                <Box
-                  sx={{
-                    ...rowGridSx,
-                    height: 36,
-                    minHeight: 36,
-                    px: 2,
-                    borderBottom: '1px solid',
-                    borderColor: 'divider',
-                  }}
-                >
-                  {renderInvisibleDummyRow(this.headerItem)}
-                  <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr.</Box>
-                  <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
-                  <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Kunde</Box>
-                  <Box sx={{ gridColumn: 4, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
-                  <Box sx={{ gridColumn: 5, gridRow: 2, textAlign: 'left', minWidth: 0, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap', ...headerCellSx }}></Box>
-                  <Box sx={{ gridColumn: 6, gridRow: 2, textAlign: 'right', ...headerCellSx }}>Gesamt</Box>
-                  <Box sx={{ gridColumn: 7, gridRow: 2, ...headerCellSx }} />
-                </Box>
-              }
-              onPageChange={this.handlePageChange}
+        {searchField}
+        <Box sx={{ display: 'flex', gap: 2.5, alignItems: 'stretch' }}>
+          {customerFilterOpen && (
+            <PartyFilterPanel
+              title="Kunden"
+              parties={partiesList}
+              selectedId={entityId}
+              onSelect={this.handleSelectCustomer}
+              onClose={this.handleToggleCustomerFilter}
+              counts={customerCounts}
+              searchPlaceholder="Kunde suchen…"
             />
-            {items === null && (
-              <Box
-                sx={{
-                  position: 'absolute',
-                  top: 52,
-                  left: 0,
-                  right: 0,
-                  bottom: 32,
-                  display: 'flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  pointerEvents: 'none',
-                  zIndex: 2,
-                }}
-              >
-                <CircularProgress size={32} />
-              </Box>
-            )}
-          </PanelTile>
-        </PanelTileGrid>
+          )}
+          <Box sx={{ flexGrow: 1, minWidth: 0 }}>
+            <PanelTileGrid>
+              <PanelTile wide={3} minHeight={0} color={cfg.listColor} sx={{ pb: 0, position: 'relative' }}>
+                <FillSpace
+                  aboveRef={[this.searchRef]}
+                  reserveBottom={32}
+                  minPageSize={8}
+                  minHeight={0}
+                  resetKey={filterKey}
+                  items={items || []}
+                  totalCount={items ? items.length : 0}
+                  unfilteredTotal={unfilteredTotal}
+                  headerItem={this.headerItem}
+                  renderItem={QuoteRow}
+                  virtualScrollbar
+                  header={
+                    <Box
+                      sx={{
+                        ...rowGridSx,
+                        height: 36,
+                        minHeight: 36,
+                        px: 2,
+                        borderBottom: '1px solid',
+                        borderColor: 'divider',
+                      }}
+                    >
+                      {renderInvisibleDummyRow(this.headerItem)}
+                      <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Nr.</Box>
+                      <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
+                      <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Kunde</Box>
+                      <Box sx={{ gridColumn: 4, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
+                      <Box sx={{ gridColumn: 5, gridRow: 2, textAlign: 'left', minWidth: 0, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap', ...headerCellSx }}></Box>
+                      <Box sx={{ gridColumn: 6, gridRow: 2, textAlign: 'right', ...headerCellSx }}>Gesamt</Box>
+                      <Box sx={{ gridColumn: 7, gridRow: 2, ...headerCellSx }} />
+                    </Box>
+                  }
+                  onPageChange={this.handlePageChange}
+                />
+                {items === null && (
+                  <Box
+                    sx={{
+                      position: 'absolute',
+                      top: 52,
+                      left: 0,
+                      right: 0,
+                      bottom: 32,
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      pointerEvents: 'none',
+                      zIndex: 2,
+                    }}
+                  >
+                    <CircularProgress size={32} />
+                  </Box>
+                )}
+              </PanelTile>
+            </PanelTileGrid>
+          </Box>
+        </Box>
       </>
     );
   }
diff --git a/src/components/manifest/ShipmentList.jsx b/src/components/manifest/ShipmentList.jsx
index 97f1033..38014b5 100644
--- a/src/components/manifest/ShipmentList.jsx
+++ b/src/components/manifest/ShipmentList.jsx
@@ -29,6 +29,7 @@ import { shipment as shipmentApi } from '../../api';
 import { backendErrorFrom } from '../../utils/backendError';
 import { notifyError } from '../../utils/notify';
 import { getMaxDocumentNumber } from '../../utils/documentNumber';
+import PartyFilterPanel, { PartyFilterButton, PartyFilterChip } from './PartyFilterPanel';
 import withNavigate from '../withNavigate';
 import ShipmentDetailDialog from './ShipmentDetailDialog';
 import { getNextShipmentNumber } from './OrderShipmentDialog';
@@ -661,7 +662,14 @@ class ShipmentSearchField extends PureComponent {
   }
 
   render() {
-    const { inputRef, onCreate } = this.props;
+    const {
+      inputRef,
+      onCreate,
+      customerFilterOpen,
+      onToggleCustomerFilter,
+      selectedCustomer,
+      onClearCustomerFilter,
+    } = this.props;
     const { input, stateFilter, seekMonths, seekYears } = this.state;
     const monthActive = seekMonths > 0;
     const monthLabel = !monthActive ? '-1 Monat' : `-${seekMonths} Monat${seekMonths > 1 ? 'e' : ''}`;
@@ -697,6 +705,17 @@ class ShipmentSearchField extends PureComponent {
               value={input}
               onChange={(next) => shipmentAutomat.actions.setFilter(next)}
             />
+            <PartyFilterButton
+              title="Kunden"
+              open={customerFilterOpen}
+              onClick={onToggleCustomerFilter}
+            />
+            {selectedCustomer && (
+              <PartyFilterChip
+                label={partyDisplayName('order', selectedCustomer)}
+                onDelete={onClearCustomerFilter}
+              />
+            )}
             <Button variant="contained" onClick={onCreate}>
               Lieferschein erstellen
             </Button>
@@ -854,8 +873,11 @@ export class ShipmentList extends PureComponent {
       total: shipmentAutomat.state.total ?? 0,
       unfilteredTotal: shipmentAutomat.state.unfilteredTotal ?? 0,
       filterKey: shipmentAutomat.getFilterKey?.() ?? '',
+      entityId: shipmentAutomat.state.entityId ?? null,
+      customerFilterOpen: false,
       orders: orderAutomat.state?.items || [],
       partiesById: {},
+      partiesList: [],
       selectedShipment: null,
       newShipmentModalOpen: false,
       busyId: null,
@@ -867,6 +889,8 @@ export class ShipmentList extends PureComponent {
     this.handleCloseShipment = this.handleCloseShipment.bind(this);
     this.handleDeleteShipment = this.handleDeleteShipment.bind(this);
     this.handlePageChange = this.handlePageChange.bind(this);
+    this.handleToggleCustomerFilter = this.handleToggleCustomerFilter.bind(this);
+    this.handleSelectCustomer = this.handleSelectCustomer.bind(this);
   }
 
   componentDidMount() {
@@ -876,6 +900,7 @@ export class ShipmentList extends PureComponent {
       total: state.total ?? 0,
       unfilteredTotal: state.unfilteredTotal ?? 0,
       filterKey: shipmentAutomat.getFilterKey(state),
+      entityId: state.entityId ?? null,
     }));
 
     this.unsubOrder = orderAutomat.subscribe(this, (state) => ({
@@ -919,11 +944,22 @@ export class ShipmentList extends PureComponent {
     this.unsubNumber?.();
   }
 
+  handleToggleCustomerFilter() {
+    this.setState((prev) => ({ customerFilterOpen: !prev.customerFilterOpen }));
+  }
+
+  handleSelectCustomer(entityId) {
+    shipmentAutomat.actions.setEntityId(entityId);
+  }
+
   async loadParties() {
     try {
       const parties = await loadParties('order');
       if (!this._cancelled) {
-        this.setState({ partiesById: cfg.partiesByIdFromList(parties) });
+        this.setState({
+          partiesById: cfg.partiesByIdFromList(parties),
+          partiesList: parties || [],
+        });
       }
     } catch {
       // Non-fatal
@@ -975,8 +1011,11 @@ export class ShipmentList extends PureComponent {
       total,
       unfilteredTotal,
       filterKey,
+      entityId,
+      customerFilterOpen,
       orders,
       partiesById,
+      partiesList,
       selectedShipment,
       newShipmentModalOpen,
       busyId,
@@ -988,10 +1027,31 @@ export class ShipmentList extends PureComponent {
     rowContext.onDelete = this.handleDeleteShipment;
     rowContext.headerItem = this.headerItem;
 
+    const customerCounts = {};
+    if (Array.isArray(items)) {
+      for (const s of items) {
+        if (s?.entityId) {
+          customerCounts[s.entityId] = (customerCounts[s.entityId] || 0) + 1;
+        }
+      }
+    }
+    const selectedCustomer = entityId ? (partiesById[entityId] || { id: entityId, name: `Kunde #${entityId}` }) : null;
+
+    const searchField = (
+      <ShipmentSearchField
+        inputRef={this.searchRef}
+        onCreate={() => this.setState({ newShipmentModalOpen: true })}
+        customerFilterOpen={customerFilterOpen}
+        onToggleCustomerFilter={this.handleToggleCustomerFilter}
+        selectedCustomer={selectedCustomer}
+        onClearCustomerFilter={() => this.handleSelectCustomer(null)}
+      />
+    );
+
     if (items === null && shipmentAutomat.state.status === 'failed') {
       return (
         <>
-          <ShipmentSearchField inputRef={this.searchRef} onCreate={() => this.setState({ newShipmentModalOpen: true })} />
+          {searchField}
           <PanelTileGrid>
             <PanelTile wide={3} minHeight={0} color={GREEN_PANEL} sx={{ p: 2 }}>
               <BackendError error={backendErrorFrom(shipmentAutomat.state.error)} onRetry={this.handleRetry} />
@@ -1003,69 +1063,80 @@ export class ShipmentList extends PureComponent {
 
     return (
       <>
-        <ShipmentSearchField
-          inputRef={this.searchRef}
-          onCreate={() => this.setState({ newShipmentModalOpen: true })}
-        />
-
-        <PanelTileGrid>
-          <PanelTile wide={3} minHeight={0} color={GREEN_PANEL} sx={{ pb: 0, position: 'relative' }}>
-            <FillSpace
-              aboveRef={[this.searchRef]}
-              reserveBottom={32}
-              minPageSize={8}
-              minHeight={0}
-              resetKey={filterKey}
-              items={items || []}
-              totalCount={items ? items.length : 0}
-              unfilteredTotal={unfilteredTotal}
-              headerItem={this.headerItem}
-              renderItem={ShipmentRow}
-              virtualScrollbar
-              header={
-                <Box
-                  sx={{
-                    ...rowGridSx,
-                    height: 36,
-                    minHeight: 36,
-                    px: 2,
-                    borderBottom: '1px solid',
-                    borderColor: 'divider',
-                  }}
-                >
-                  {renderInvisibleDummyRow(this.headerItem)}
-                  <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Lieferschein / Ref</Box>
-                  <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
-                  <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Auftrag</Box>
-                  <Box sx={{ gridColumn: 4, gridRow: 2, ...headerCellSx }}>Kunde</Box>
-                  <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
-                  <Box sx={{ gridColumn: 6, gridRow: 2, ...headerCellSx }}>Paket / Tracking</Box>
-                  <Box sx={{ gridColumn: 7, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Status</Box>
-                  <Box sx={{ gridColumn: 8, gridRow: 2, ...headerCellSx }} />
-                </Box>
-              }
-              onPageChange={this.handlePageChange}
+        {searchField}
+        <Box sx={{ display: 'flex', gap: 2.5, alignItems: 'stretch' }}>
+          {customerFilterOpen && (
+            <PartyFilterPanel
+              title="Kunden"
+              parties={partiesList}
+              selectedId={entityId}
+              onSelect={this.handleSelectCustomer}
+              onClose={this.handleToggleCustomerFilter}
+              counts={customerCounts}
+              searchPlaceholder="Kunde suchen…"
             />
-            {items === null && (
-              <Box
-                sx={{
-                  position: 'absolute',
-                  top: 52,
-                  left: 0,
-                  right: 0,
-                  bottom: 32,
-                  display: 'flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  pointerEvents: 'none',
-                  zIndex: 2,
-                }}
-              >
-                <CircularProgress size={32} />
-              </Box>
-            )}
-          </PanelTile>
-        </PanelTileGrid>
+          )}
+          <Box sx={{ flexGrow: 1, minWidth: 0 }}>
+            <PanelTileGrid>
+              <PanelTile wide={3} minHeight={0} color={GREEN_PANEL} sx={{ pb: 0, position: 'relative' }}>
+                <FillSpace
+                  aboveRef={[this.searchRef]}
+                  reserveBottom={32}
+                  minPageSize={8}
+                  minHeight={0}
+                  resetKey={filterKey}
+                  items={items || []}
+                  totalCount={items ? items.length : 0}
+                  unfilteredTotal={unfilteredTotal}
+                  headerItem={this.headerItem}
+                  renderItem={ShipmentRow}
+                  virtualScrollbar
+                  header={
+                    <Box
+                      sx={{
+                        ...rowGridSx,
+                        height: 36,
+                        minHeight: 36,
+                        px: 2,
+                        borderBottom: '1px solid',
+                        borderColor: 'divider',
+                      }}
+                    >
+                      {renderInvisibleDummyRow(this.headerItem)}
+                      <Box sx={{ gridColumn: 1, gridRow: 2, ...headerCellSx }}>Lieferschein / Ref</Box>
+                      <Box sx={{ gridColumn: 2, gridRow: 2, ...headerCellSx }}>Datum</Box>
+                      <Box sx={{ gridColumn: 3, gridRow: 2, ...headerCellSx }}>Auftrag</Box>
+                      <Box sx={{ gridColumn: 4, gridRow: 2, ...headerCellSx }}>Kunde</Box>
+                      <Box sx={{ gridColumn: 5, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Pos.</Box>
+                      <Box sx={{ gridColumn: 6, gridRow: 2, ...headerCellSx }}>Paket / Tracking</Box>
+                      <Box sx={{ gridColumn: 7, gridRow: 2, display: 'flex', justifyContent: 'center', textAlign: 'center', ...headerCellSx }}>Status</Box>
+                      <Box sx={{ gridColumn: 8, gridRow: 2, ...headerCellSx }} />
+                    </Box>
+                  }
+                  onPageChange={this.handlePageChange}
+                />
+                {items === null && (
+                  <Box
+                    sx={{
+                      position: 'absolute',
+                      top: 52,
+                      left: 0,
+                      right: 0,
+                      bottom: 32,
+                      display: 'flex',
+                      alignItems: 'center',
+                      justifyContent: 'center',
+                      pointerEvents: 'none',
+                      zIndex: 2,
+                    }}
+                  >
+                    <CircularProgress size={32} />
+                  </Box>
+                )}
+              </PanelTile>
+            </PanelTileGrid>
+          </Box>
+        </Box>
 
         {/* Modal: View / Manage Shipment Details */}
         {selectedShipment && (
diff --git a/src/components/manifest/index.js b/src/components/manifest/index.js
index 12a760c..f3c8633 100644
--- a/src/components/manifest/index.js
+++ b/src/components/manifest/index.js
@@ -18,6 +18,7 @@ export { default as BookDeliveryDialog } from './BookDeliveryDialog';
 export { default as OrderShipmentDialog } from './OrderShipmentDialog';
 export { default as ShipmentDetailDialog } from './ShipmentDetailDialog';
 export { default as OrderDocumentsTiles } from './OrderDocumentsTiles';
+export { default as PartyFilterPanel, PartyFilterButton, PartyFilterChip } from './PartyFilterPanel';
 export { withManifestId } from './withManifestId';
 export {
   manifestConfig,