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

# Account field created

> Fired when a field is set on an account for the first time.

This event is fired when a field is set on an account for the first time. Account fields are the new name for [tenant fields](/docs/product/platform/tenants#tenant-fields): data from your CRM or your own systems stored on an account.

`externalFieldId` identifies the field, and `accountId` is the account it belongs to. Only the value property that matches the field type is set: `stringValue`, `numberValue`, `booleanValue`, `stringArrayValue`, `dateValue`, or `referenceValues`. The rest are `null`.

This event was added in webhook version [`2026-10-06`](/docs/webhooks/versions). Targets on earlier versions don't receive it.

## Schema

[**View JSON Schema →**](https://core-api.uk.plain.com/webhooks/schema/latest.json)

Example:

<Snippet file="webhooks/account-field-created.mdx" />

<Snippet file="webhooks/sdk-usage.mdx" />


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.