You don’t have to do much after implementing AdMob ads, because AdMob already takes care of this, i.e. IDFA is already in use by AdMob. Just Apple will ask you some questions with checkboxes for answers when sending the application in the end. I don’t remember exactly what these questions are, and after a few months I am sending the application. The questions are found in the link below . Does this application use an advertising identifier (IDFA)? - AdMob 6.8.0
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