The number of registrations on a device made in selected report period.
MyTracker doesn't count registration if it was done before SDK embedding or tracked without device ID.
To log the Registration events, you need to configure SDK for iOS, Android, Unity, Flutter, Web platforms, or send events via S2S API.
Registrations – Flow metric
Registrations CA – Current Attribution metric
Registrations LT – LifeTime metric
Registrations AT – Attribution Time metric
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