If you want to add users to make edits to your account, then please follow the steps below.
Make sure you trust the new user, as they are now able to edit any product data in your account and are able to see and edit your import credentials
Add Users
Go to Account > Sub Users
Simply add the first name, last name and email address. Then check which accounts to grant access too.
Once you have added the user, they receive an email with there login credentials.
Edit or Delete Users
Go to Account > Sub Users
You can revoke access to specific accounts by un checking the checkbox or all accounts.
You can also delete the user all together.