Recently we have exercised this with a partner. It may be helpful for others as well.
The basic functionality is to connect to SAP through SAPJCo (Supporting SAPJCo 3.07+).
As a first step have a production with at least two items of the following type:
- EnsLib.JavaGateway.Service
- EnsLib.SAP.Operation
Configure the settings for the Java Gateway and the SAP Operation accordingly. And start the production.