Hi,
Since 2009, we have been running our web dynpro applications within the SAPGui using Function Module WDY_EXECUTE_IN_PLACE and the Class CL_GUI_WDR_VIEWER.
When we applied Support Pack this June (SAP_BASIS 731 SAPKB73106), our users have been reporting issues where they sometimes get the message "Service cannot reached" or "Session not found" in the web dynpro application.
Here's what happens:
1. They run the web dynpro application. It opens in SAPGui though an HTML Container using the function module and methods I mentioned earlier.
2. They navigate through the application.
3. They sometime leave their session open and do other things.
4. When they come back to their session, they occasionally get the error "Service cannot be reached" / "Session not found". And in case they were in the middle of something and haven't saved their changes yet, those changes are gone. They would have to re-run the application again.
But this does not happen consistently which is making it difficult for us to narrow down what's causing the issue. Sometimes they leave their session for 10 minutes and they come back to it and still works fine. Sometime they just leave it for a couple of minutes and when they come back their session is lost.
It's as if the session is timing out quicker than it should but actually the session is breaking or getting lost for some odd and mysterious reason.
At this point we are grasping at straws. It could be a Windows version issue, or Microsoft IE. But none of that cannot be confirmed.
We tried the recommendations in SAP Note 1679126. But this did not fix our issue. Attached is a brief documentation of what we did in relation to that note.
Any info you have regarding this issue would be very much appreciated.
Thanks.
Giscard
