3172365 - Error: "Your company has already connected with this buyer company using a different account and Ariba Network ID (ANID) message"

When I try to sing in to view a sourcing event, I get the following error message:

Your company has already connected with this buyer company using a different account and Ariba Network ID (ANID) than the one you are trying to log into. To connect with this buyer company, you need to log into the already connected account. Please contact your company's account administrator and request that they create you as a new user under ANID (ANID).

already connected review accounts Ariba Network ID , KBA , migration source: knowledge@ariba , error messages , registration by invitation (event partic , sourcing account login , migrated on: 2022-04-02 14:10:38 , BNS-ARI-SS-EVT , Sourcing Events , BNS-ARI-SLP , Supplier Lifecycle & Performance , Problem