---
title: DeviceActivityCenter.MonitoringError.excessiveActivities
framework: Device Activity
role: symbol
role_heading: Case
platforms: [iOS 15.0+, iPadOS 15.0+, Mac Catalyst 15.0+]
path: deviceactivity/deviceactivitycenter/monitoringerror/excessiveactivities
---

# DeviceActivityCenter.MonitoringError.excessiveActivities

The calling process is monitoring too many activities.

## Declaration

```swift
case excessiveActivities
```

## Discussion

Discussion The maximum number of activities that can be monitored at one time by an app and its extensions is twenty.

## See Also

### Checking for Errors

- [DeviceActivityCenter.MonitoringError.intervalTooLong](deviceactivity/deviceactivitycenter/monitoringerror/intervaltoolong.md)
- [DeviceActivityCenter.MonitoringError.intervalTooShort](deviceactivity/deviceactivitycenter/monitoringerror/intervaltooshort.md)
- [DeviceActivityCenter.MonitoringError.invalidDateComponents](deviceactivity/deviceactivitycenter/monitoringerror/invaliddatecomponents.md)
- [DeviceActivityCenter.MonitoringError.unauthorized](deviceactivity/deviceactivitycenter/monitoringerror/unauthorized.md)