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

# Status callback

> Called by the SEPA Mandate Signature service when the status of a mandate setup changes.

The SEPA service POSTs to the `return_url` supplied in the mandate creation request.




## OpenAPI

````yaml /products/commerce/v1/integration/extensions/openapi.yaml webhook MandateSigningCallback
openapi: 3.1.0
info:
  title: Commerce V1 Extension Services API
  version: '1.0'
  description: >
    This specification describes the HTTP endpoints that your services can
    implement to extend Hellgate Commerce V1.  Commerce V1 calls these endpoints
    during payment processing flows.
  contact:
    name: Starfish GmbH & Co. KG
    email: hello@starfish.team
    url: https://hellgate.io/cpa/commerce
  license:
    name: Hellgate API Terms
    url: https://hellgate.io/terms-and-conditions
servers:
  - url: https://your.service.com
    description: Your extension service
security:
  - ApiKey: []
paths: {}
components:
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: x-api-key

````