Problems·HTTP 503

validator-unavailable

The validator could not judge the document.

What it means

The fault is on our side, not in your document, and nothing was stored.

What to do

Retry after the Retry-After interval.

Example

Sent as application/problem+json (RFC 9457). Branch on type, which is stable. Never branch on title or detail, which are prose and may change.

{  "type": "https://www.einvoicing.dev/problems/validator-unavailable",  "title": "The validator could not judge the document.",  "status": 503,  "detail": "…"}

Returned by

• Validate a Peppol document POST /v1/validations
• Convert a JSON invoice to Peppol UBL POST /v1/conversions