Upload attachment

OAuth scope: attachment.write

Upload an attachment

This endpoint allows you to upload an attachment to be then linked to an external transfer. Valid files are: JPEG, PNG and PDFs. The endpoint is particularly useful when you want to link an attachment to an external transfer via POST /v2/external_transfers and POST /v2/external_transfers/checkout.

Inside Qonto, attachments are files uploaded onto transactions by users. Attachments typically correspond to the invoice or receipt, and are used to justify the transactions from a bookkeeping standpoint.