Registry ID for vendor

Hello all, can you tell me where the system (which table) stored data about vendor and registy ID that the system sends to SUS to create users?

I am refering to screen where the user is created when the vendor receives email. The last field in the user creation window is Registry ID, that is the user ID and password for vendor.

Which table have this information? I need to know with this, partner number in SUS.

Thanks in advance

Rosa Rodríguez