Uploads the external attachment for an entity Payment or InvoiceAsk AIpost https://sandbox-api.veem.com/veem/v1.2/attachmentsRecent RequestsLog in to see full request historyTimeStatusUser Agent Retrieving recent requests…LoadingLoading…Body ParamsfilefilerequiredfileResponses 201Created 400Unsupported file extension; Unable to upload fileUpdated 7 months ago
