# `GET /v1/customergroup` Protected. Requires a valid session cookie (`credentials: 'include'`). JTL-POS customer group synchronization Returns customer groups modified after lastChangedCustomerGroup cursor for the authenticated POS register, excluding 'Lieferanten'. ## Query parameters | Param | Required | Type | Description | |-------|----------|------|-------------| | `lastChangedCustomerGroup` | no | string | Sequential ID cursor of last synced customer group entry (`posterminalsyncqueue.id`) | | `limit` | no | integer | Maximum number of customer groups to return | ## Response `200` Array of customer group objects for JTL-POS ```json [ { "customerGroupId": "1", "name": "Endkunden", "standard": "1", "discountPercent": "0.000000", "lastChanged": "12" } ] ``` ## Errors | Status | Description | |--------|-------------| | 401 | Unauthorized | --- _Generated from `@openapi` JSDoc. Do not edit by hand — run `npm run docs:api`._