If so, you need SAP Universal ID. In a few months, SAP Universal ID will be the only option to login to SAP Community. Without it, you will lose your content and badges. If you have multiple accounts, use the Consolidation Tool to merge your content.
I have created a multicube based on 2 cubes . How to use that cube in BEx and display data . Any step by step documents related to this will be highly helpful .