Calling webservice in VC - skip parameters

Hi all,

I'm new to VC. I'm trying to call a SAP webservice which reside in my backend ECC 6.0 system from VC. First of all, i have tested my webservice in wsnavigator on portal. There everything goes well, but i have to skip certain internal parameters, otherwise i get an error.

Now i would like to do the same in VC. So I need some kind of config setting to say that certain parameters should not be send. When i deselect the parameter when defining the data service, it doesn't work, i think vc still sends the parameters but with empty values.

please advice,

thanks

Peter