Private( Apple Hided E-Mail)/ Bundle id Change

Hello, we use apple ID as a sign-up/log-in method, when we released our appstore version, did the switch from beta to market app. Our bundle ids have changed, now we are wondering that is there any way to help users to reach their old accounts using the market app with a different bundle id or any smart idea to approach to to this problem

Private( Apple Hided E-Mail)/ Bundle id Change
 
 
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