MAP TO DATA SOUCE ODATA SERVICE RE-MAP a FUNCTION MODULE

Hey all,

for a project I've to create various odata services and map different RFC Function Modules.

So the Gateway SEGW is not dealing very good with different in / output types of the RFC Funtion Modules, so I build Wrapper Function Modules and try to convert, lets say STRING --> DATS and in return DATS --> String.

The Problem is I have to delete and RE MAP the Function Module all over again, if I change some Type Declaration of the Function Module like:

Did anybody know how to remap the RFC without delete and setup everything again???

Greetings

David