Hi Experts,
as I'm totally new to Visual Composer (and to the SAP world too, in fact), I'm digging that topic from the few days now. I have available VC 7.0, so I try to work on this version (VC Server Version: 701.10.0.1). The main problem is connection with Data Services and in fact, defining them so I'm able to use them. I tried with two of them: SAP systems and Web Services.
1). SAP System
In Visual Composer I have a list of systems (aliases), but I have no permission or they're not defined. I have granted all roles and groups to my user. As far as I understand, I cannot define them in portal NWA, but I have to use Visual Administrator tool. I checked "Services/Destinations", but I cannot see the right match between the systems/aliases I see in VC and here. The other track is that I have to define system in SLD, am I right?
2). Web Services
I have tried to use one of the public access web services (e.g. http://www.webservicex.net/globalweather.asmx?wsdl), but I cannot create System ("Invalid URL data). Any hints on this?
Please, if you'd like to help, try to be idiot-proof and avoid general documentation links, I have browsed a lot of them and still am missing the point 
I don't know if my questions are clear enough, I'll be more precise if needed.
Thanks a lot,
Maciej