OPDC API error code

CHANGE_ORDER_CLOSED

HTTP status 409

An update to a change order whose status is Void or Rejected, which Sage never saves again. 409. Nothing is written.

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

How errors work, and what to retry Every error code