If the "Cloud Service" is turned off on a G Suite domain, this disables the ability for all users in the G Suite domain from creating Projects in Google Cloud Platform.
If you are in this situation and you try to create a project in GCP from the Cloud Console, using the gcloud tool, or via the API directly, you will receive the following error:
APPHOSTING_ADMIN Cloud Service disabled by admin. Please contact admin to restore service. com.google.apps.framework.request.StatusException: generic::FAILED_PRECONDITION: APPHOSTING_ADMIN Cloud Service disabled by admin. Please contact admin to restore service
Formerly, the fix for this would have been to go into the G Suite Admin Console and enable the "Google Developers Console".
Related issue: Unable to create project in Google Cloud: "Cloud Service disabled by admin. Please contact admin to restore service"
However, the "Google Developers Console" has been removed from the G Suite Admin Console list of Additional Google Services.
If you create a new G Suite domain and the Google Developers Console is not enabled by default, then you will never be able to create GCP Projects with accounts in that domain because there is no way to turn it back on.
How can a G Suite domain that does not have the Google Developers Console enabled get it switched on so that the domain users can create GCP Projects?
