Managing User Properties

By default, SharePoint Online surfaces a lot of attributes from Azure AD. However, there may be instances where you want to develop or implement a SharePoint App that requires information that's not stored in Active Directory. For this purpose, a custom SharePoint attribute may be useful. To create a custom user profile property, follow these steps:

1. Launch the User Profile Service application from the classic SharePoint admin page.
2. Under People, select Manage User Properties.
3. Select New Property.

4. Fill out the necessary values, including Name, Display Name, Description, whether it is Indexed, and Type:

Once you select a Type, you cannot change it. If you wish to do so, you must delete and recreate the profile property.

5. Click OK to save the new property.

Now, the new property is available to reference and start accepting data immediately.