Click: "Settings" in the left nav
Click: "More Settings" in the Business Account info navigation
Click: Brand Safety > Domains in the left navigation
Click: your school's main domain
If you haven't setup a school domain yet: follow the Facebook's directions: https://developers.facebook.com/docs/sharing/domain-verification/verifying-your-domain/
If you receive an error, let your Waybetter account manager know.
Click: "Assign Partners" button
Enter the Waybetter's Partner Business ID. Your account or adversting manager should have sent it to you as part of the setup request.
Grant: Full > Manage Domain Toggle
Click: "Next" Button