Iphone SE with MS Intune/Apple Business Management not syncing contacts between handset and iCloud
We have a number of iPhone SEs managed through Apple Business Manager and MS Intune, along with federated login to Apple ID/iCloud from our MS 365/Azure AD system.
The problem is that some users' phones do not sync their iCloud contacts from the web portal to their handsets. The Apple ID for the device is logged in, but the contacts do not sync.
Does anyone know what settings or permissions I need to check on ABM or MS Intune to allow this sync?
iPhone SE, iOS 15