Go to System Administration menu.
Select “List Configuration and Maintenance”.
Select the “Clean-up” tab.
Select the “Merge User Account”.
You’ll see the “Merge User Accounts” screen.
Select the “Choose an account” button on the left to add the account that you want to keep.
Search by “Last Name“ and “First Name”.
Select the “Find User/Search Directory” button.
In the list of results, select the user.
The user account will be added to the left side.
Now repeat the same by selecting the “Choose an account” button on the right side for the account you want to merge into the first account.
After you’ve both accounts, select the “Delete this account:“ radio button on the right side.
Select the “Delete Selected Record” button to merge the second account into the first account.