Before creating a service account, make sure you have enabled the cloud APIs. For more details, see Enabling Cloud APIs.
Log in to the GCP Console using administrative privileges.
Select IAM & Admin -> Service Accounts from the navigation menu.
Select the project where you want to create a service account.
Click + CREATE SERVICE ACCOUNT.
Enter the following values in the Service account details on the Create service account page:
Enter the service account name, ID, and description.
Click CREATE AND CONTINUE then click CONTINUE.
Click DONE. A service account is created and listed with all the service accounts of this project.