Scenario:
you administer SharePoint Online Microsoft 365 tenant
business asks you to remove mobile phone numbers from SharePoint User Profiles:

Solution:

As a SharePoint administrator, you can do it:
1. Start Microsoft 365 SharePoint Admin Center
2. Navigate to More Features -> User Profiles -> Manage User Properties

3. Under “Contact Information” -> Mobile phone -> Edit

4. Uncheck “Replicable”, Save, wait a minute or two
5.
– Select “Default Privacy Settings”: “Only Me”
– Uncheck “User can override”
– Uncheck “Allow users to edit values for this property”
– Uncheck “Show in the profile properties section of the user’s profile page”
– Uncheck “Indexed”

6. Save

Note: Microsoft implemented new MS-Graph API that adds or deletes profile card custom properties using the profile card API in Microsoft Graph

Resources:

• Microsoft: Add or delete custom properties from the profile card using the profile card API in Microsoft Graph
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