API error code

RUP-BIL-400-PAYMENT_SIGNATURE_INVALID

The payment notification signature is invalid.

HTTP status: 400
Area: Plans and billing

Description

English: The payment notification signature is invalid.
Turkish: Ödeme bildiriminin imzası geçersiz.

Example response

HTTP 400 · application/problem+json

{
  "type": "https://rintup.com/docs/errors/RUP-BIL-400-PAYMENT_SIGNATURE_INVALID",
  "title": "The payment notification signature is invalid.",
  "status": 400,
  "code": "RUP-BIL-400-PAYMENT_SIGNATURE_INVALID",
  "traceId": "…"
}

How to handle it

This is a client error: the request will fail the same way if it is sent again unchanged. Fix the request, the key or the account state first.

Branch on the code field, not on the title: code never changes, while title follows the Accept-Language header (Turkish or English). Include traceId when you contact support.