Anonymous ID

The Tealium Android library generates a unique persistent anonymous ID the first time it is launched and stores it in tealium.visitorId. This value is included in each tracked event as the attribute tealium_visitor_id.

class TealiumHelper {
	lateinit var tealium: Tealium

    fun getVisitorId(): String {
        return tealium.visitorId
    }
}

If you are using Tealium AudienceStream, visitorId is the anonymous ID associated with the visitor. Learn more about anonymous IDs in AudienceStream.

User Identifier

When you identify known users, add a user identifier attribute to the persistent data storage.

To add a user identifier, such as a customer ID:

fun setKnownVisitorId(id: String) {
    tealium.dataLayer.putString("customer_id", id, Expiry.FOREVER)
}