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 an STO in Me21n. After that i was trying to create delivery in VL10B, but not able to create. It's not showing any error also. In PO everything is ok.
