Verify your GoFileRoom customer sign-ins are a valid email address. Select Administration, then Manage Users & Groups. For a successful migration, it will be critical to review all customers' email addresses to assure they are valid addresses and in the correct format. It's important that you identify and select the Change Login for customers who don’t have valid email addresses. For example:
user@domain.com
. Being that GFR customers emails will be migrated for the customers on their behalf, they will want to start operating with consistency based off their GFR email formats.