separating Apple IDs for work and personal phones

You can create a new Apple ID for work, and sign in with it on the iPhone in the following locations.

Settings ➜ Account (top off settings) ➜ Scroll down to the bottom, Sign Out, then sign in with her Apple ID.

Settings ➜ Account ➜ Media & Purchases ➜ Sign Out.

Settings ➜ Messages ➜ Send & Receive ➜ Apple ID ➜ Sign Out.

Settings ➜ Facetime ➜ Called ID ➜ Apple ID ➜ Sign Out.

Once that is done, you can add the new Apple ID to Family Sharing to share purchases and subscriptions with it while keeping data, calls and messages separate.

You can then delete any content you don't want to keep on the work phone.

tobi1731 wrote:

I've had an Apple ID for many years. Got it when I was using Android phones and Ipods. Then I switched to Apple phones and now have Apple phones for work (XR) and personal (13pro). I want to keep the phones separate, though I have many contacts that I'd like to keep on both phones. Also for Itunes, I have a large library - presuming I can "share" the work phone on my family account if I move the 13pro to a different ID. Work phone carrier is Verizon while personal is T-Mobile.

Contacts, purchases, photos, and the rest are all local to an Apple ID, and not shared. You can’t move the purchases and subscriptions, but can—with some effort—move your own stuff.

To transfer a device to another Apple ID, the procedure is basically this one:

What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support

You can propagate your own contents (such as keeping a copy locally, then re-uploading it in the other), but you’ll then have two unrelated copies of the data, so a change to the contacts data in one Apple ID will not be reflected in the other. You could move to a shared contacts server, which would allow one set of contacts from both. iCloud doesn’t directly support sharing contacts.

Some options:

https://apple.stackexchange.com/questions/276183/how-do-i-sync-contacts-between-2-icloud-accounts

You can share most purchases and most subscriptions using Family Sharing:

…. Family Sharing - Apple

Related:

Apple ID - Apple Community

Stop sharing Apple ID with wife - Apple Community