Can Tag Manager be used for Demographic reporting in Mobile App Analytics?

Question

Is it possible to to enable AdvertisingId/IDFA collection through GTM to get Demographic reporting in GA (Mobile App Analytics)?

If not, and GA SDK must be used, will events have to be sent via the Tracker to get demographic reporting, or can GTM still be used for events?

Answer 1

Actually, in the newest version of the Google Tag Manager, you only need to activate the Enable Advertising ID Features in the Universal Analytics tag itself:

Includes App Install Conversions, Demographics and Interest Reports and Remarketing with Google Analytics Integration. Learn about App Install Conversions, Demographics and Remarketing and their impact on your privacy policy.