Integrating old BW & R/3 systems with NW04s (EP7.0)

Question

hello,
      We are working with EP 5.0 SP 5. Now we are planning to go ahead with a new installation of NW04s (EP 7.0). We have integrated BW & R/3 systems in my existing portal. The version details are as below:
Sprint  BW  -   3.5  
Sprint  SRM - SRM 4.0 and Server Component SRM 5.0
Metris  BW  -   3.5
HR  BW      -   3.1
ESS  / MSS  -   4.6c
Do I need to upgrade my (BW & R/3) systems also, so as to integrate it with new portal OR can I continue using my old (BW & R/3) systems & still will be able to integrate with portal 7.0
Regards
Sunil Kulkarni
PS: Rewarding points will be given for helpful answer.

Answer 1

Hello Sunil,
Here are the prerequisites.
Prerequisites
·        The issuing server must possess a public and private key pair and a public-key certificate. For the SAP Web AS ABAP, then this information needs to be available in the issuing server’s SSO PSE.
·        If the accepting system is an SAP Systems <= Release 4.6D, then the system must have the Workplace PlugIn installed and must meet the following release requirements:
¡        Release 4.6x: 4.6D kernel as of Support Package level 74
¡        Release 4.5x: 4.5B kernel as of Support Package level 459
¡        Release 4.0x: 4.0B kernel as of Support Package level 758
·        The SAP Security Library (or the SAP Cryptographic Library) must be installed on all of the accepting system's application servers.
Refer to the fllowing link.
http://help.sap.com/saphelp_nw04/helpdata/en/5c/b7d53ae8ab9248e10000000a114084/frameset.htm
and Note No. 177895
Regards
Deb