> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gate.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Unresolved Payment Notification

> Sent once per unresolved payment event to the merchant. The callback body includes `bizType`, `bizId`, `bizStatus`, and `data`.

## Overview

This page documents `webhook unresolvedPayWebhook`. The full schema, parameters, and examples are rendered from the linked OpenAPI or webhook definition above.

## Notes

* This page describes a callback payload sent by GatePay, not a merchant-initiated request.
* Verify the signature first, then apply idempotent processing before updating business state.
* For callback guidance organized by business flow, read this page together with the Notification guide.
* For shared signing rules, see [/api-reference/version/100/en/common/securityAndSignature](/api-reference/version/100/en/common/securityAndSignature).


## OpenAPI

````yaml /api-reference/version/100/en/openapi/unresolvedPayNotify-openapi.json webhook unresolvedPayWebhook
openapi: 3.1.0
info:
  title: Gate Pay Financial Transaction Flow API
  version: 1.0.0
  description: >-
    Fund flow APIs and callbacks. GatePay sends a webhook for each unresolved
    payment record.


    Verify the signature before processing; `data` is a JSON string.
servers:
  - url: https://openplatform.gateapi.io
    description: Production
security: []
paths: {}

````