When you delete the Azure user source, all assignments and messages for the source’s users are removed. You cannot undo a source deletion.
Before deleting the last Azure AD user source, ensure that you go through the following points.
All users and their assignments will be removed.
User sync service will be disabled on the Primary Server.
To delete the Azure AD user source, perform the following steps:
In ZENworks Control Center, click the Configuration tab.
In the User Sources panel, select the check box next to the user source, then click Delete.
Click OK to confirm the deletion.