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# AuditUserType

Enumeration of actor categories in change history records.

```
string AuditUserType
```

## Discussion

The `AuditUserType` appears in the `userType` field of [`AuditSummary`](/documentation/Apple-Ads-Platform-API/AuditSummary) and [`ChangeDetails`](/documentation/Apple-Ads-Platform-API/ChangeDetails) records. Use it to distinguish manual advertiser-initiated changes from API-driven automation or Apple-initiated actions.

Filter by `userType` in an [`AuditQuery`](/documentation/Apple-Ads-Platform-API/AuditQuery) to scope results to a specific actor category:

```json
{
  "field": "userType",
  "operator": "IN",
  "value": [
    "CUSTOMER_API"
  ]
}
```

This is especially useful when auditing API-driven changes independently of UI actions.

---

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