Hi,
I have written a small function with two input variables:
Begda and endda.
Both variables are marked as mandatory in the R/3 backend. Now I have used it in a VC. In the test function both variables are marked as mandatory.
So fare so good...... 
but
now I have changed theses both parameters to optional. Save and activate it in the backend.
When test the function now in the test function. Nothing has changed.
I have checked following:
reconnect to the portal -> (no change)
refresh the functions in the data services -> (no change)
reread the function -> (no change)
Only when I change the name of the function in the backend, I got the change in the parameters.
Any idea ? Is there any update flag in the portal I have to set ?
Best regards Hans Georg
But when I test the function in the test