# CitizenServiceNumberByConceptEmployeeId Citizen service number of a concept employee __Activity name :__ GetCitizenServiceNumberByConceptEmployeeId Get the citizen service number (BSN) of a concept employee. BSN is separately authorized in Loket and is therefore designed to have its own activities. Select loket.nl (REST) API URL: /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber Insert loket.nl (REST) API URL: /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber Update loket.nl (REST) API URL: /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber Delete loket.nl (REST) API URL: /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber Select loket.nl (REST) API Operation: get /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber Update loket.nl (REST) API Operation: put /providers/employers/conceptemployees/{conceptEmployeeId}/citizenservicenumber - Catalog: `LoketNlRest` - Schema: `ConceptEmployee` - Retrieve: true - Insert: false - Update: true - Delete: false - Field Selection Method: NotRequired - Base Path: `content` ## Parameters of Table Function | Name | Data Type | Required | Default Value | Documentation | |---|:---:|:---:|:---:|---| | `conceptEmployeeId` | `guid` | ☑ | | The unique identifier of the concept employee | ## Columns of Table Function The columns of the table function `CitizenServiceNumberByConceptEmployeeId` are shown below. Each column has an SQL data type. | Name | Data Type | Label | Required | Documentation | |---|:---:|---|:---:|---| | `citizenServiceNumber` | `string(9)` | | ☐ | The social security number of the employee used in communication with the Dutch tax authorities. The number has to be a valid Dutch citizen service number (BSN). |