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.
When i am using transaction code VF01(Billing) for delivery related billing i get an error message "Output was successfully issued" system is not allowing me to save the billing doc.