FxFaximus Developers
Production APIPortal
Errors and Retries
Interpret Faximus API errors, bound retries, and reconcile uncertain fax submissions before retrying.
Reliability
Errors and retries
400
Invalid request shape or unsupported value.
401
Invalid, missing, or expired bearer token.
403
Missing scope, entitlement, or customer account access.
404
Resource is not found or is not visible to the account making the request.
409
State conflict, idempotency conflict, or verification mismatch.
429 / 5xx
Bound read retries and Retry-After. Reconcile uncertain mutations; never blindly resend a fax.