# Track when output control was changed via API

## Question

Can we get the last updated time of output control through the API?

## Answer

Two options depending on what you need:

1. **Platform/API change history**

   Use `user/audit/log/list`.

   Filter by output control actions.
2. **Actual output state change**

   Create an output state change alert.

   Then read notifications via history endpoints.

Summary:

* Use audit logs to track platform/API actions for output control.
* Use events if you want to know when output state physically changed, regardless of how it was triggered.

## Links

* [Audit log list](/docs/navixy-api/user-api/backend-api/resources/commons/user/audit/audit_log.md)
* [Output triggering (UI)](/docs/user/guide/events-and-notifications/inputs-and-outputs/output-triggering.md)
* [History user list](/docs/navixy-api/user-api/backend-api/resources/commons/history/history-user.md#list)


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