I'm developing an app/website where the user has to be logged in, so I can identify them via email. In the app the user can register for push-notifications about different topics. I'm filtering the target-users via OneSignal's tag feature.

Since a user can be logged in with one account on multiple devices, the notifications should be sent to all of the user's devices.

Is there any way to do this?

Update: I found some information on the following link: https://documentation.onesignal.com/docs/internal-database-crm

But I would honestly prefer a solution, which doesn't require storing all the playerIds in my database.

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