Dear Naresh
I would highly recommend a specialized SWIFT Service Bureau (faster, leaner and cheaper implementation, track record and last but not least TRM vendor indpendent - or what do they do if they decided to move away from WSS to SAP TRM?)!
We are the one and only global SAP Service Partner with Special Expertise in SAP and SWIFTNet integration and connecitivty. We do have a long lasting track record since 2000 with 100+ successfull corporate roll-outs - where of 40+ SAP varous flavors of SAP integration (from full SAP blueprints with ECC 6.0, BCM/PI till hybride implementation with e. g. WSS TRM).
Among our customers are SAP customers like: Unilever, F. Hoffmann-La Roche, AkzoNobel, Royal Philips Electronics, Carlsberg Breweries, LEGO A/S, LEO Pharma, Tecan, Syngenta, Panalpina, Swiss Government, Swiss Federal Railway, TeliaSonera, UPM Kymmene, SABIC, etc..
We would be more than happy to support you on your journey! As an intermediate step we could propose to come to your or your customers premises for a free of charge workshop to discuss with all your stakeholders the pro and cons of the various SAP and SWIFTNet integration / connectivity options (incl. end-to-end security based on LAU / HMAC-SHA256).
Please let me know. I'm looking forward to hearing from you.
With best regards
Christoph