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Identifiers

Airbridge gathers as many identifiers as possible and chooses the most suitable one for various purposes.

Types of Identifiers Used in Airbridge

Airbridge uses 4 main types of identifiers: Airbridge Device ID, User ID, Cookie ID, and Airbridge ID.

  • Airbridge Device ID is used to identify users in app environments.

  • User ID and Cookie ID are used to identify users in web environments. These are also used in features that transmit or export identifiers, such as Audience Manager and Raw Data Export.

  • Airbridge ID is used to analyze app and web user journeys within the Funnel Report.

Airbridge Device ID

Airbridge Device ID is used to identify users based on their device.

  • For Android, Airbridge collects GAID and App Set ID, and for iOS, it collects IDFA and IDFV. Among these, the most suitable identifier is selected and used as the Airbridge Device ID.

If none of these identifiers are available, the Airbridge SDK generates a Random Generated ID.

Below is a list of identifiers that Airbridge may use as candidates for the Airbridge Device ID.

Below are the Airbridge features where the Airbridge Device ID is used.

Note

Since only one of the candidate identifiers is selected as the Airbridge Device ID, the identifier used may vary depending on the specific Airbridge feature.

User ID

User ID is used to identify users based on the information they provide when signing up or logging in to your service. If Airbridge can't collect this information directly, the client must send the user ID via a server-to-server (S2S) integration.

Below are the Airbridge features where the user ID is used.

Cookie ID is used to identify users based on information stored in cookies in web environments. Below are the Airbridge features where the cookie ID is used.

Airbridge ID

Airbridge ID is used to identify users by utilizing both the user ID and the Airbridge device ID when available. It is primarily generated based on the user ID, and if the user ID is not available, it is generated based on the Airbridge device ID. Airbridge ID is created by Airbridge to track user journeys across both app and web environments.

Below are the Airbridge features where Airbridge ID is used.

Determining first events

Airbridge determines whether an event is the first based on either the Airbridge device ID or the user ID.

Understanding Identifiers Used in Airbridge

Note

The identifiers in the scenarios below are simplified to facilitate your understanding; real-world identifiers are more complex.

Identifiers used in Airbridge are not always collected. For example, Airbridge Device ID may be unavailable due to LAT (Limited Ad Tracking) or ATT (App Tracking Transparency) policies. Similarly, the user ID may not be available if the user does not sign up or log into your service.

Determining unique users in reports

Unique users refer to distinct users in reports, excluding those counted multiple times based on identifiers.