I am still trying to get the BAPI_INCOMINGINVOICES_* as NW GW service. What I cannot figure out is how to start this correctly because there is the SE80 DataModeler/cons... and the T-Code SEGW. Additionally I can now use the SAP NetWeaver Gateway productivity accelerator.
The "older" tutorials show how to use SE80. There is one with the connection to Microsoft Sharepoint that is using the segw. Now comes the NW GW PA.
But how should I start with the consumption of the BAPI_INCOMINGINVOICES_*?
Thanks for pushing me in the right direction,