Family Sharing plus Apple Music
Before setting up family sharing wanted to get some understanding
First, I made the mistake of signing up for Apple Music before setting up family sharing. Now that I've upgraded some other devices and family members want access to Apple Music, I have to figure this out. I did not realize it requires setting up Family Sharing to make use of the family subscription- thought is was ID driven.
Part of my confusion regarding the best path to setup comes from the fact Apple never consolidates AppleIDs, so I have more than 1 including legacy IDs - that applies to other members of the family as well.
I signed up for a family plan on Apple Music under "AppleID_1"
I believe that's my most current / in-use AppleID
Most of our purchases though, including apps, have been and are likely to be made under the most current one of my wife's - call that "AppleID_2"
First question: is Family Sharing retroactive to apps purchased and downloaded under a given ID - I would guess no, but if it is, that's useful to know, because then I'd likely want to set up Family Sharing under the ID with the most apps - simply from a management perspective
In any event, I decided to go ahead and try to set up Family sharing from my personal iOS device which already has my "AppleID_1" configured into it.
All seemed well, it displayed "AppleID_1" initially, for iCloud, but then goes to the "Share Purchases" screen where it tells me it will use a 'legacy' AppleID, call it "AppleID_3" - which i don't know if apple did or didn't map to the same account as "AppleID_1". It's a similar id, just with an obsolete domain.
Apple let you use email addresses for AppleIDs, but those tend to change and expire over time, especially if you've based them on certain Apple services.
At this point I stopped because I don't know if this is even going to be matched to the id I used to set up Apple Music family subscription.
Second Question: Can anyone help illuminate Apple's increasingly complicated ID scheme, and the least annoying way to set up family sharing?
given that apps and music prior to this setup are scattered over multiple IDs and the initial attempt reflected 2 different AppleIDs at 2 different screens in the setup process? I stopped any attempt to complete setup when I saw the 2nd ID.
thanks