The finance team needs to view project billing reports without gaining additional project permissions. What should you do?

The roles/billing.viewer role provides permissions to view billing account costs and transactions, which is exactly what the finance team needs without granting them broader project permissions. roles/billing.user (Billing Account User) allows users to link projects to a billing account, but not view reports. roles/billing.admin (Billing Account Administrator) grants full control over the billing account, including managing users and payment methods, which is too permissive. The roles/billing.projectManager role (Billing Project Manager) is a legacy role and not the most appropriate for simply viewing reports; it also has broader project management implications.