Hi Experts, Portal Side :We are on Portal 7.0 SP20 with ESS 6.03 SP09 , MSS 600 SP19. Backend : ERP 6.0 , EHP4, on SAP NW 7.01. We are planning to upgrade SAP Portal from 7.0 to 7.4 does it mean do we need to perform entire SAP NW stack upgrade from 7.0 to 7.4 ? or can we upgrade only portal and later we can do SAP ECC upgrade to 7.4. All our ESS is on Java components , is there any incompatibility if we upgrade portal to 7.4 and leave backend as 7.1 for now. Thanks Krish
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