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.
After hiring a staff, I found that staff was our staff that I want to link his previous personnel number to his current personnel number. Do you know how? I tried to link via IT31 but seems the system does not allow me to save