The company is not taking requests right now, and nothing was executed. 423, retryable. The problem's reason says why: the company is locked for Sage maintenance, or someone is using it exclusively in Sage.
OPDC API error code
COMPANY_LOCKED
HTTP status 423
The API answers with a problem document (RFC 9457) whose type is https://twinn.engineering/errors/company-locked, and with X-Error-Code: COMPANY_LOCKED. Branch on the code, never on the detail text.