3596476 - How do I register a new supplier organization to invite it to events?

I want to invite a supplier company to an event, but I can't find it to add as a participant.

supplier registration, vendor registration, add supplier, add vendor, supplier management, vendor management, invite supplier, invite vendor, new supplier, new vendor, register supplier, register vendor, supplier not found, vendor not found, organization not found, create supplier organization, create vendor organization, add event participant, unregistered supplier, unregistered vendor , KBA , BNS-ARI-SS-EVT , Sourcing Events , BNS-ARI-SIPM-REG , SIPM Registration/Login , BNS-ARI-SIPM , Supplier Information & Performance Management , How To