How Do I Remove This Error in Firebase: “This domain is already in use.”?

Question

I\'m trying to add a custom domain to an existing project but keep getting the error that \"this domain is already in use.\" I\'m not using this domain anywhere else in any othe

Answer 1

Go to https://console.firebase.google.com/iam-admin/iam/project and click on 'Projects Pending Deletion" click Restore. Then go to https://console.firebase.google.com/project/YOUR-PROJ-ID/hosting/main and delete the domain connection(s).

That should free the domain up for a new SSL cert.