Yes, that is what we did, Used SHMM to clear some shared memory thing, and it worked.
There is no documentation which states that this has to be done. It is very confusing
1) There is a configuration in CAC1, to ensure Clock Times show, but has no impact on portal
2) Then there is Webdynpro application configuration, which SAP says we should use. Although it is not technically necessary to copy into a Z-config, I am sure it is not an incorrect method to do so. But even this does not impact because
3) It is set as X anyway, by default in the shared memory. and there is no documentation which mentions this, and no way of guessing that transaction SHMM has to be used.
At one time, SAP used to give detailed application help, and now it is all very esoteric.
Anyway, we are finally up and running with CATS WDA, hopefully there are no more issues.
Thanks and Regards