STEP_UP_UNAVAILABLE Re-authentication check temporarily unavailable

HTTP status
503
Credit
No credit taken

Meaning

The re-authentication (step-up) check did not respond, so nothing was done and no credit was used.

Fix

Wait for Retry-After, then resend with the same proof (it has not been used yet).

Example response

{
  "type": "https://checkslip.com/problems/step-up-unavailable",
  "title": "Re-authentication check temporarily unavailable",
  "status": 503,
  "code": "STEP_UP_UNAVAILABLE",
  "instance": "01a18600-0000-7000-8000-000000000000"
}