We are trying to upgrade our portal to EHP 5.0. We have ESS/MSS and few webdynpro java and webdynpro abap applications on the portal. These are the few queries I have
1) ESS services : employee search, personal data, LMS(Webdynpro Java) are on EHP 3 as of now. Will the applications remain the same even if we upgrade to EHP5?
2) ESS travel management(Webdynpro ABAP) are on EHP 2 as of now. Will this application remain the same even if we upgrade to EHP 5?
3) E Recruitment (BSP) is on EHP 3 Will this application remain the same even if we upgrade to EHP 5?
4) We have MSS services: ERec Manager and Appraisal. Will these services affect if we upgrade to EHP 5?
4) We have few custom applications in Webdynpro abap and webdypro java developed on portal. Will these effect if we upgrade to EHP 5?