5xx — Server errors and maintenance

5xx — Server-side errors

500 — internal_error: "Intern serverfejl" (Internal server error). Rare. Retry after a short pause; if it persists, contact support with the request_id.

503 — service_unavailable: "Tjenesten er midlertidigt utilgængelig" (Service temporarily unavailable). Wait and retry.

Robust integration:

1. Treat 5xx as transient — retry with back-off (e.g. 1s, 2s, 4s).
2. Server errors do NOT count against your monthly quota.
3. Log the request_id from the response so support can find the call.

On /dawa/*, 500/503 are shown in DAWA's shape (InternalServerError / ServiceUnavailableError), but the status and behaviour are the same.