Navigate to Advertisers>> All Advertisers >> +Import user (Top Right Corner) >> +Add New.
- User Type: Select the type of user you want to import.
- Account Manager: Select the Account Manager.
- User CSV: Upload the User CSV file. (You can download the sample too there.)
- Update Duplicate: Check/Unchecked update data that already exist. Username and Email address will be used to get info about duplicate users.