Grant service account Organization Administrator role

1. Select the project to be monitored.
2. Click the Navigation Menu on the upper-left corner, select IAM & admin > IAM.
3. Click the ADD button on the top.
4. In the New members field, enter the service account ID you want to use.
5. In the Select a role field, select Resource Manager > Organization Administrator

Note: You can also enter "Organization Administrator" in the filter for fast access.

6. Click the SAVE button.