Payer account invalid

HTTP 422   payer_account_invalid

What it means

The account asked to pay doesn't exist or can't be asked to pay.

What to do

Check payerAccountId.

The response

HTTP/1.1 422
Content-Type: application/problem+json

{
  "type": "https://docs.txgold.money/errors/payer_account_invalid",
  "title": "Payer account invalid",
  "status": 422,
  "code": "payer_account_invalid",
  "detail": "…",
  "requestId": "7219af94e39d"
}

Branch on code, never on title or detail: the code never changes once published, and the text may. Quote requestId to TxGold support. See all errors.