Question

Your company has just created a new Cloud Billing account for a department. Three existing development projects, previously without billing enabled, must now charge their costs to this new billing account. As the person who created the billing account, you want to associate all three projects with it while following least-privilege practices. Which action correctly links the projects to the new billing account?

Accepted Answer

On each project, use the 'Billing' page or 'gcloud billing projects link' to associate it with the new billing account, ensuring you have the Billing Account User role on the account and Project Billing Manager on the projects.

Answer

Grant the Billing Account Creator role on the billing account to each project's default service account so the projects auto-attach themselves.

Answer

Recreate the three projects from scratch, selecting the new billing account during project creation, since billing accounts cannot be changed after a project exists.

Answer

Assign the Organization Administrator role at the organization level, which automatically links all child projects to the newest billing account.