This Solution describes how Big Business Server for Mac OS handles multiple users and single-instance objects, like Make A Payment when another user is already using it. (3239)
Big Business displays a dialog box when users try to use the Check Run and Schedule Payments tools in one of these three circumstances:
A User has the Check Run tool open and another User tries to launch the Check Run or Schedule Payments tools.
A User has the Schedule Payments tool open and another User tries to launch the Schedule Payments or Check Run tools.
A User has either the Check Run or Schedule Payments tools open and the same User tries to launch the other tool.