OPDC API error code

VENDOR_CERTIFICATE_EXPIRED

HTTP status 422

A payment to a vendor with a stop-pay certificate that expired on or before the payment date, vendor-wide or for the job of an invoice being paid. 422.

Send allowExpiredCertificate: true to pay anyway. Nothing is written.

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

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