Other Xamarin APIs

Adjust the log level

You can control the amount of log messages that show up from App Center in the console. Use the LogLevel-API to enable additional logging while debugging. By default, it is set to ASSERT for the App Store environments and WARN otherwise.

To have as many log messages as possible, use LogLevel.Verbose.

AppCenter.LogLevel = LogLevel.Verbose;

Identify installations

The App Center SDK creates a UUID for each device once the app is installed. This identifier remains the same for a device when the app is updated and a new one is generated only when the app is re-installed. The following API is useful for debugging purposes.

System.Guid? installId = await AppCenter.GetInstallIdAsync();


On Android, this method must only be used after AppCenter has been started, it will always return null before start.

Identify users

The App Center SDK supports setting a user ID that is used to augment crash reports. To use this capability:

  1. Configure the App Center SDK by calling AppCenter.Start(...) as described in the App Center SDK Getting started guide.
  2. Set a userID in the SDK using the following code:

After setting a user ID, you can use App Center's search feature to search for specific crash reports associated with the ID. Learn more in App Center's search documentation.


The value for the user ID is limited to 256 characters. It will be shown with your crash reports but not used for aggregation or counts of affected users. In case you set user ID multiple times, only the last user ID will be used. You need to set the user ID yourself before each application launch, because this value is not stored by the SDK between launches.

Disable all services at runtime

If you want to disable all App Center services at once, use the Enabled property. When disabled, the SDK will not forward any information to App Center.


To enable all services at once again, use the same API but pass true as a parameter.


You don't need to await this call to make other API calls (such as IsEnabledAsync) consistent.

The state is persisted in the device's storage across application launches.


This method must only be used after AppCenter has been started.

Change state of service in runtime

You can enable or disable desired service at the runtime with following code:



This method must only be used after Analytics has been started.

Check if App Center is enabled

You can also check if App Center is enabled or not.

bool enabled = await AppCenter.IsEnabledAsync();


This method must only be used after AppCenter has been started, it will always return false before start.

Check App Center SDK version at runtime

You can get the version of App Center SDK that you are currently using.


Use custom properties

App Center allows you to define custom properties as key value pairs in your app. You may use custom properties for various purposes. For instance, you can use custom properties to segment your users, and then send push notifications to a specific audience.


Only devices that have Push successfully registered are matched in audiences. As a consequence, the iOS simulator can not be used to test audience matching.

You can set custom properties by calling the SetCustomProperties() API. A valid key for custom property should match regular expression pattern ^[a-zA-Z][a-zA-Z0-9]*$. A custom property's value may be one of the following C# types: string, int, long, double, float, decimal, bool and DateTime.

CustomProperties properties = new CustomProperties();
properties.Set("color", "blue").Set("score", 10).Set("now", DateTime.UtcNow);


If you set the same custom property more than once, previous values will be overwritten by the last one.

You may remove any custom property by calling the Clear() API. This will only remove the value of the property for a device. It will not remove the property name from App Center portal.

CustomProperties properties = new CustomProperties();