Why can't I access an event with the username provided by my customer?
Do I have to use the username my customer told me to use to access their event?
You do not have to use the username your customer may have provided in the event invitation you received. When your contact was created in their supplier database, a User ID field was required for them to complete the supplier creation. That is meant to act as a placeholder ID until you successfully accept the invitation with your own username. The placeholder User ID entered is the username displaying in the email invitation.
If you click the link in the email to access the event, you should be given an option to Sign Up for a new user account or Login with an existing user. Choose whichever of these options applies to you, and you will then be able to control what username is connected to your customer's event.
If you are taken to a login page instead of a page to Sign Up or Login, refer to the articles below:
Ariba Network > Registration & Onboarding