Heres the situation ;
We just finished upgrading (TECHNICAL)from BW3.5 to BI 7.0.
The upgrade was a Non-Unicode type, although the vanilla system (BW 3.5) was unicode enabled.
Now, Before we implement BIA , is it necessary to go in for a FUNCTIONAL UPGRADE too??? If at all we do it, will it ,in anyway boost the performance of the system??
If we do not do it (i.e, a FUNCTIONAL UPGRADE before BIA), is there anything that we are loosing??
Additional Info : WE DONOT HAVE A SAP PORTAL.