I'm struggling with understanding how MobilePush SDK's Contact Key works.
I refered to some former question like Mobile Push SDK Contact Key, Mobile Push SDK Functionality. Since these questions are about MC Connect issue, I was wondering what should I do when it comes to Data Cloud(CDP) not Sales Cloud.
I have to set Contact Key for MobilePush. As I understanding it should be cutomer data in app. (ex. customer ID, emailAddress etc)
If I using Data cloud, I have to use Subscriber Key(Contact Key) to 'Individual ID' which is in Data Cloud. And it is not in our mobile app.
In this case, how can I match data cloud contacts and mobilepush contacts?
(+ I found the document Connect Mobile Apps to Data Cloud. Is this could be solution?)