Hello Jogeswara Rao,
Thank you very much for your prompt reply and the solution you suggested.
I really appreciate that.
I also thought that this problem can be solved with custom development.
However in my opinion it is actually a bug, and SAP should provide a note to correct this system behavior.
If we are not able to do this via IW41, the function module should also not allow it.
I can't imagine a business scenario under which, the function module should allow posting a time confirmation for already confirmed and teco order.
However, as I have mentioned earlier, thank you for your inputs and I will try to implement the enhancement you suggested.
I would also wait if there is already a SAP note or if this can be done via some configuration based on other expert's suggestion.
Best Regards,
Aarohi