Here you are able to create single login for the WHMCS. Using single login the users can login to the client portal using the WHMCS credentials. After the successful procedure on the client portal there will be WHMCS icon and the clients will be able to login to the client portal using WHMCS credentials.
Note: Using single login the users can login to client portal using WHMCS login details. For further details please click on add and check help on the add page.