I have a Professional edition of SalesForce where I have one Sandbox license. I created one Sandbox and I'm able to log in as the administrator but other users cannot log in to the sandbox.
They are using the url test.salesforce.com to log in with their login as [email protected] and the same password as they had in the production system.
Is there something that can be done to fix this or is this because only one user is allowed to log in to the sandbox?