We are currently using SAP HR in version 4.6C on EP 5.0. Our organization is exploring an option -- to tear out the front end from the back end -- that is, building the ESS/MSS interface from scratch on a different platform, like WebLogic or WebSphere without going through SAP EP.
At the initial evaluation stage, we felt that it is very technically challenging to achieve this. We'd appreciate some expert advice.
In general, my expert advice is to save your energy and expertise for the problems that can really make a difference. Ripping out one technology platform in favor of another is a bad idea is 99.9 percent of the time, especially when it comes to using packaged software such as SAP HR.
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