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

# Processing Status Updated

> Learn when the processing status updated webhook is sent and what data it includes.



## OpenAPI

````yaml products/payout-origination/api-reference/payout-origination.json webhook processing_status_updated
openapi: 3.1.0
info:
  title: Meridian Payout Origination API
  version: 1.0.0
  summary: Originate payout requests and track the resulting transactions
  description: >
    These endpoints accept a Base64-encoded payout message payload and allow you
    to list resulting transactions or retrieve a transaction by Meridian ID.
    Request authentication is performed using Meridian HMAC headers. The server
    validates the HMAC headers, stores the encoded payload, and queues the
    message for downstream processing.
servers:
  - url: https://api.meridian.example.com
security: []
tags:
  - name: Payouts
    description: Payout origination and transaction tracking
paths: {}

````