Mihir,
I'm not sure exactly what you're looking for here, but hope this helps.
All of the OTM/SAP clients that we've worked with have used an integration server to communicate between SAP and OTM (webMethods, Tibco, Mercator, etc). The integration server translates between SAP and OTM's G-Log XML, allowing for the following flows (at a minimum):
SAP to OTM
- Orders
- Order Updates
- Status Updates
OTM to SAP
- Planned Shipments
- Status Updates
- Financial Info (assuming Freight Payment / Settlement is used)
--Chris