From your EventCreate event dashboard, go to Track > Share & Tools > More > Affiliates.
Then, type in the name of your affiliate or create an alphanumeric code to assign to specific affiliates.
Please note: no capital letters or special characters are allowed.
Your affiliate codes will then look like https://www.eventcreate.com/e/my-test-fundraiser?refcode=mark. Share this unique link with your affiliate and track registrations made with your affiliate as a source.
If you are using a custom domain, follow the steps above and share the EventCreate URL to distribute affiliate codes.