Amount must match the payment request

HTTP 422   amount_must_match_request

What it means

A payment that names a paymentRequestId must be for exactly the requested amount.

What to do

Use the request's amount.

The response

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

{
  "type": "https://docs.txgold.money/errors/amount_must_match_request",
  "title": "Amount must match the payment request",
  "status": 422,
  "code": "amount_must_match_request",
  "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.