OPDC API error code

ATTACHMENT_EXPIRED

HTTP status 410

The file was gone when the on-premise service went to fetch it: a file is kept at most 30 minutes. 410. Nothing is written; send the file again with a new Idempotency-Key.

The API answers with a problem document (RFC 9457) whose type is https://twinn.engineering/errors/attachment-expired, and with X-Error-Code: ATTACHMENT_EXPIRED. Branch on the code, never on the detail text.

How errors work, and what to retry Every error code