diff --git a/src/components/manifest/ManifestForm.jsx b/src/components/manifest/ManifestForm.jsx
index 60890a0..1952b72 100644
--- a/src/components/manifest/ManifestForm.jsx
+++ b/src/components/manifest/ManifestForm.jsx
@@ -1259,6 +1259,7 @@ class ManifestForm extends PureComponent {
       <ManifestLines
         kind={cfg.kind}
         columns={cfg.columns}
+        docId={this.props.docId}
         lines={lines}
         saving={saving}
         wide={4}
diff --git a/src/components/manifest/ManifestFormLine.jsx b/src/components/manifest/ManifestFormLine.jsx
index 431157c..8cab002 100644
--- a/src/components/manifest/ManifestFormLine.jsx
+++ b/src/components/manifest/ManifestFormLine.jsx
@@ -609,6 +609,25 @@ class ManifestFormLine extends PureComponent {
             : null));
       const lineAmount = parseNum(getFirstVal(this.props.line?.amount, this.props.line?.menge)) ?? 0;
 
+      const undeliveredOrders = Array.isArray(cachedArticle.undeliveredOrders)
+        ? cachedArticle.undeliveredOrders
+        : [];
+      const currentDocId = this.props.docId != null
+        ? Number(this.props.docId)
+        : (this.props.line?.manifestId != null ? Number(this.props.line.manifestId) : null);
+      const otherOrders = currentDocId != null && kind === 'order'
+        ? undeliveredOrders.filter((ord) => Number(ord.orderId) !== currentDocId)
+        : undeliveredOrders;
+      const reservedInOtherOrders = otherOrders.reduce(
+        (sum, ord) => sum + (Number(ord.amount) || 0),
+        0,
+      );
+      const reservedTitle = isTracked !== false && reservedInOtherOrders > 0
+        ? `Bereits in anderen Aufträgen reserviert:\n${otherOrders
+            .map((ord) => `• ${ord.orderNumber || (ord.orderId ? `Auftrag #${ord.orderId}` : 'Auftrag')}: ${formatStock(ord.amount)}${ord.customerName ? ` (${ord.customerName})` : ''}`)
+            .join('\n')}`
+        : undefined;
+
       return (
         <Box
           sx={{
@@ -729,19 +748,23 @@ class ManifestFormLine extends PureComponent {
               <Typography
                 variant="caption"
                 fontWeight={600}
+                title={reservedTitle}
                 sx={{
                   color:
                     stockVal == null
                       ? 'text.disabled'
                       : stockVal <= 0
                         ? 'error.main'
-                        : lineAmount > stockVal
+                        : lineAmount > (stockVal - reservedInOtherOrders)
                           ? 'warning.main'
                           : 'text.secondary',
                   fontSize: '0.72rem',
                 }}
               >
                 Bestand: {isTracked === false ? '∞' : formatStock(stockVal)}
+                {isTracked !== false && reservedInOtherOrders > 0
+                  ? ` (${formatStock(reservedInOtherOrders)} reserviert)`
+                  : ''}
               </Typography>
 
               {/* Marge */}
@@ -933,6 +956,19 @@ class ManifestFormLine extends PureComponent {
             ? rawWarehouses.reduce((sum, wh) => sum + (Number(wh.stock) || 0), 0)
             : null));
 
+      const deliveryUndelivered = Array.isArray(fullArticle.undeliveredOrders)
+        ? fullArticle.undeliveredOrders
+        : [];
+      const reservedInOtherOrdersDelivery = deliveryUndelivered.reduce(
+        (sum, ord) => sum + (Number(ord.amount) || 0),
+        0,
+      );
+      const reservedTitleDelivery = isDeliveryTracked !== false && reservedInOtherOrdersDelivery > 0
+        ? `In Kundenaufträgen reserviert:\n${deliveryUndelivered
+            .map((ord) => `• ${ord.orderNumber || (ord.orderId ? `Auftrag #${ord.orderId}` : 'Auftrag')}: ${formatStock(ord.amount)}${ord.customerName ? ` (${ord.customerName})` : ''}`)
+            .join('\n')}`
+        : undefined;
+
       return (
         <Box
           sx={{
@@ -1069,6 +1105,7 @@ class ManifestFormLine extends PureComponent {
               <Typography
                 variant="caption"
                 fontWeight={600}
+                title={reservedTitleDelivery}
                 sx={{
                   color:
                     deliveryStockVal == null
@@ -1080,6 +1117,9 @@ class ManifestFormLine extends PureComponent {
                 }}
               >
                 Bestand: {isDeliveryTracked === false ? '∞' : formatStock(deliveryStockVal)}
+                {isDeliveryTracked !== false && reservedInOtherOrdersDelivery > 0
+                  ? ` (${formatStock(reservedInOtherOrdersDelivery)} reserviert)`
+                  : ''}
               </Typography>
 
               {/* Marge */}
diff --git a/src/components/manifest/ManifestLines.jsx b/src/components/manifest/ManifestLines.jsx
index 1fcdcc9..f172eae 100644
--- a/src/components/manifest/ManifestLines.jsx
+++ b/src/components/manifest/ManifestLines.jsx
@@ -24,6 +24,7 @@ class ManifestLines extends PureComponent {
       lines,
       saving,
       partyId,
+      docId,
       linesColor,
       dirtyLineFields = {},
       shipments,
@@ -145,6 +146,7 @@ class ManifestLines extends PureComponent {
                           index={index}
                           positionIndex={index + 1}
                           kind={kind}
+                          docId={docId}
                           line={line.key != null ? line : { ...line, key: index }}
                           columns={columns}
                           saving={saving}