This article describes how to create a new user to a sandbox.
Step 1: Create a new user account
Go to Manage and then select Users. Click ‘Add User’ to create a new user
Choose the name of the new user account and click save.
Step 2: Add the user to the superusers usergroups
Go the tab ‘User groups’ and add the new user to the usergroup ‘superusers’
Save the changes.
Step 3: Set email-address and create reset password.
Go back to the ‘Details’ tab and choose ‘Edit profile’ and set the mail-address of the user account.
A mail from ‘email@example.com’ will be sent to trigger the ‘password reset’ procedure.
Step 4: Login with newly created user.
Click the newly created user OR browse to .../en-us/account (... = url of your sandbox)