Please note that only the following fields can be synced: Login, Email, First Name, and Last Name.
To ensure successful synchronization, make sure that no other fields aside from Login, Email, First Name, and Last Name are set as “required” in the User Profile Settings on iSpring LMS.

If you try to set other fields like Phone or Job Title as “required,” you'll run into an error during synchronization. As a result, users won't be created in iSpring LMS.