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

# plan_grant.updated

> A plan grant duration changed.

## When this fires

After an active Plan Grant's duration or deadline is committed. The payload is the grant at that update, and its last timeline event is `updated`.

This event does not fire for any other field change.


## OpenAPI

````yaml /openapi/en/webhooks/2026-08-27.json webhook plan_grant.updated
openapi: 3.1.0
info:
  title: Commet Webhooks
  version: '2026-08-27'
  description: >-
    Outbound webhook events emitted by the Commet API. Each event is delivered
    as a signed POST to your configured endpoints.
servers: []
security: []
paths: {}

````

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