# Get custom fields for a sales invoices Retrieve all custom fields associated with a specific sales invoice record in the finance module of the PMS. The response includes a list of custom fields, each containing details such as field name, type, and value. This endpoint is useful for accessing additional information stored in custom fields that are not part of the standard sales invoice attributes. Endpoint: GET /api/v3/salesInvoices/{id}/customFields Version: 3.0.4 Security: OAuth2 ## Path parameters: - `id` (integer, required) ## Response 200 fields (application/json): - `content` (array) - `content.id` (integer) - `content.value` (string) - `content.objectName` (string) - `content.objectId` (integer) - `content.template` (object) - `content.template.type` (string) Enum: "DATE", "FILE", "LONG_TEXT", "NUMBER", "TEXT", "URI", "YES_OR_NO" - `content.template.entityType` (string) Enum: "BOOKING", "BUILDING", "CONTACT", "COMPANY", "UNIT", "SALES_INVOICE", "SALES_CREDIT", "ROOM_STAY" - `content.template.name` (string) - `page` (object) - `page.size` (integer) - `page.totalElements` (integer) - `page.totalPages` (integer) - `page.number` (integer)