In the Security tab you can define the access rights for the SAP connection.
Allow everybody to access this connection
Everybody can access this connection.
Allow only specific users/groups
Only specified users/user groups can access this connection.
The list Allowed contains users and user groups who have access to the connection. The list Available contains all defined users and users groups. With the buttons < and > you can switch users and users groups between the two lists.
Only users with admin rights can create or edit connections and manage the access security. A connection can only be used by authorized users to create or edit connections. Unauthorized users would get an error message.