After you login to your dashboard the option to “Add a new user” is the first option you see. For test purposes we recommend you create test users under the Demo account group. You will not be charged for the first 100 Demo accounts you create (unless your contract states otherwise).
The process of creating users can be automated using the Reseller API. You would use this when offering signup for customers using your website or in-app purchase. Although you can use an email address as a username, you may prefer to use a random string or some string that is generated by your signup processes so as not to contain personal information.
Remember, once the user is created, for the app to login you will need to call the Client API using credentials in the form username@auth_suffix, where username is the name as entered in the Dashboard and auth_suffix is specific to you and was provided when you signed up.
For example, pdb1001@yourcompany. The password would be the same as entered into the Dashboard.