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.
The Message no. ME898 it was coming as warning message at the time of PO creation or change, In configuration I made it as error message, still it is coming as warning. Kindly explain me how to make it error message.