I have a similar problem as described in this thread: [Issue when we run the same bsp applciation simultaneously by same user;
A new session has to be created each time a BSP page is called. I guess the URL parameter sap-syscmd=nocookie would also help in my case. The tricky part is, that my BSP pages are called from the business workflow (BSP pages wrapped in workflow tasks with transaction WF_EXTSRV).
How can I force those wrapped BSP pages to create a new session for each call?
Thank you very much for your help!