SAP NetWeaver 7.4 or 7.3

[aamerz]

hi all,

presently, our SAP landscape is based as below:

- SAP ECC 6.0 SPS 15 (no EHP)

- Enterprise Portal on NW 7.0 SPS 18

additionally, the business packages ESS 600 and MSS 600 are used for ESS functionality. in order to transition to NW 7.3 or NW 7.4 (ideal scenario as this is latest release), we have 2 options - upgrade or fresh installation. we prefer to install a fresh NW landscape as after research, we have reached the conclusion that there are many hassles in an upgrade..

my question is - is NW 7.4 compatible with ECC 6.0 (non EHP)? if yes, can we install a fresh NW 7.4 and make ESS functionality work with the current ECC SPS 15 setup? or will we have to apply latest ECC SP stack or possibly even upgrade our ECC landscape to EHP (this will lead to time constraints)? or is NW 7.3 the last compatible release for our setup?

any SAP notes / documents / advice will be greatly appreciated.

kind regards,

Amer.