LAST_SIGN_IN_METHOD An account always needs a way to sign in

HTTP status
409
Credit
No credit taken

Meaning

This is the only way left to sign in to this account, so it cannot be removed.

Fix

Set a password or add a passkey first, then remove this sign-in method.

Example response

{
  "type": "https://checkslip.com/problems/last-sign-in-method",
  "title": "An account always needs a way to sign in",
  "status": 409,
  "code": "LAST_SIGN_IN_METHOD",
  "instance": "019a2f3e-7b1c-7d4e-9f00-0a1b2c3d4e5f"
}