We are implementing the Tealium tag on our apps. In the past we previously used the Amplitude SDK and we are able to identify users in tealium via a user id. More explained in there docs here.
We want to use tealium to send data to amplitude instead of including the SDK in the app. But I cannot figure out how to set custom user id in tealium. We have a user id setup in our datalayer. But I don't know when setting up the mapping the in the amplitude tag which destination I should use for Amplitude. E.g I don't see any user id related destinations. Is this possible as not being able to identify users limits the usefulness of the amplitude tag for our use case.