Automatic User Provisioning in Microsoft Entra - Updating Phone Numbers

Hello Community,

I am seeking advice from anyone who has experience with automatic user provisioning in Microsoft Entra. Specifically, I am looking for guidance on how to handle the updating of phone numbers.

My main concern is whether it is possible to synchronize phone numbers 1:1, meaning that the old, no longer valid phone number would be replaced directly by the new one. Or does the system add the new phone number while retaining the old one, even if it is no longer valid?

Additionally, is there a setting where we can configure how phone numbers are managed during synchronization?

I would greatly appreciate any insights or experiences you can share on this matter.

Thank you in advance for your help!