Consider the following scenario in Microsoft Dynamics SL:
When you do this, you notice that if the user opens a possible values window during sign on, they can see a list of all companies. They cannot access screens in a company they have no screen access rights to. However, they can see the company on the possible values list and can log on to that company.
            - You create multiple companies in an application database.
 - In Access Rights Maintenance (95.270.00) you grant a user access rights to screens in certain companies, but not in all companies.
 
When you do this, you notice that if the user opens a possible values window during sign on, they can see a list of all companies. They cannot access screens in a company they have no screen access rights to. However, they can see the company on the possible values list and can log on to that company.