Error codes · Enrolling a key

Invitation already used

Codekey_duplicate
Status409
If this was an orderNever returned when buying
Send it again unchanged?No — change something first
.NET SDKEnrollmentRefusedException

What it means

This invitation has already taken a key — for example, the key submission was sent again after its answer was lost. An invitation takes exactly one key.

What to do

  • Ask Anis staff to restart the enrolment; it issues a new invitation. A new key pair on the same invitation is refused the same way.
  • Next time, save the key submission’s answer (it carries the challenge) before anything else.

Where you can meet it

Example

The body of the refusal. Its type is the address of this page.

{
  "type": "https://developers.anis.ly/errors/key-duplicate",
  "title": "Invitation already used",
  "status": 409,
  "code": "key_duplicate",
  "requestId": "01J9R2K8T4V6XQ0M3B7C5D9E1F"
}