What is the difference between the Email and Username fields?

In the Email field, enter the email address where you wish to receive email notifications including email notifications about events.

In the Username field, enter the identifier that you want to use to log in to your Ariba Commerce Cloud account. The Username field must be in email format, but you don't have to use a valid email address.

TIP: Leave This is my username checked so that your email address and the username are the same.