We may be facing this error when performing actions on Google Cloud Platform

AccessDeniedException: 403 Request is prohibited by organization’s policy.
vpcServiceControlsUniqueIdentifier: error_indicator

You could find further information about the error by search the error_indicator in Console Logs

Usually, It was caused by violation of the VPC Service Control rules. For example, you access the resource which is a untrusted project, and you could fix it by adding the untrusted project to your VPC Service Control Perimeter.