---
title: EventMetadata - Partner API
description: Additional metadata for backfilled historical events.
api_version: 2026-10
source_url:
  html: 'https://shopify.dev/docs/api/partner/latest/objects/EventMetadata'
  md: 'https://shopify.dev/docs/api/partner/latest/objects/EventMetadata.md'
api_name: partner
api_type: graphql
type: object
---

# Event​Metadata

object

Additional metadata for backfilled historical events.

## Fields

* legacy​Charge​Id

  [ID!](https://shopify.dev/docs/api/partner/latest/scalars/ID)

  non-null

  The legacy charge identifier from the previous billing system.

***

## Map

### Fields with this object

* [Charge.metadata](https://shopify.dev/docs/api/partner/latest/objects/Charge#field-Charge.fields.metadata)
* [Earning.metadata](https://shopify.dev/docs/api/partner/latest/objects/Earning#field-Earning.fields.metadata)