BW 7.0 extracting data from Data Services 4.0

Hello,

We need some assistance with extracting data from BODS 4.0 into BW 7.0. We have an RFC connection and have tried to create a 3.1 Infosource and it's subsequent data source, but something is not right. The intent is to extract external data from non-SAP systems utilizing BODS as a collection system.

Thank you for any recommendations.