holder_change_session_required
Holder change session required. HTTP status 409.
The request would change the registered holder of a .se or .nu domain. Only the account owner can do that, logged in to the client area; API keys, team members and delegated sessions cannot.
What to do
The account owner completes the holder change on the domain’s contact page in the client area. To update other contact fields through the API, leave out registrant.registrationIdentifier.
Example
{ "type": "https://developer.hostup.se/errors/holder_change_session_required", "title": "Holder change session required", "status": 409, "detail": "Holder change session required", "code": "holder_change_session_required", "requestId": "req_01hxa3b4c5d6e7f8g9h0j1k2m3"}Branch on code, not on title or detail. When you contact support about it, include the requestId. More in Errors and retries.