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 to deliver a new functionality using the EP. Is it better to create a general program and a transaction iview or to create a webdynpro? What's the advantage of each approach?