# Add Invoice Payment Document Associates a (PDF, JPG, PNG or JPEG) file to a booking and/or invoice payment. Endpoint: POST /api/external/accounting/invoice-payments/{paymentId}/documents Version: 1.5.0 Security: API_AUTHENTICATION ## Path parameters: - `paymentId` (integer, required) Invoice payment ID ## Request fields (application/json): - `file` (string, required) ## Response 200 fields (application/json): - `id` (integer) Document ID Example: 66325 - `uuid` (string) Document UUID Example: "2342343423423423423ASS32" - `originalName` (string) Original name of the document Example: "fil3.pdf" - `fileSize` (integer) File size Example: 652154 - `creationDate` (string) Date created Example: "2024-11-27T16:56:40Z"