> ## 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.

# seats.updated

> A customer's seat count changed.

## When this fires

Every seat mutation fires it: the SDK seat endpoints (add, set, remove, bulk) and manual seat events created from the dashboard. The payload carries the previous and the new absolute count for the feature.

`customer.state_changed` fires alongside it with trigger `seats_updated`, carrying the full entitlement state including the seats summary.

Use it to keep your own member-management UI in sync with billed seats.


## OpenAPI

````yaml /openapi/en/webhooks/2026-08-27.json webhook seats.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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