Thanks for your reply.
all our system uses 7.3 GUI
File version : 7300.1.0.1074
Multiple log on is disabled.
System Allows multiple log on in this scenarios.
take a report / transaction which take more than a minute.
execute report in one system
immediately log on to PRD server with same SAP user ID.
System allows ?
You can also try in your system
Our Example:
Execute MB51 for a year ( It needs 2 minutes to output the report)
In the same time log on to other system. (even we select the option terminate the other logon)
System will allow.
How to solve this issue