Configure API Security

Navigate back to, and from the Dashboard (admin console), click Security.  Click API reference and confirm that the Enable API access box is checked.  If it is not checked, check it and click Save on the bottom right.

Advanced Settings

Click Show more at the bottom of the Security page to reveal Advanced Settings.  Click Advanced Settings, then click Manage API client access.

Manage API client access

In this screen, copy the Client ID value that you created in an earlier step and paste it into the Client Name field.  Then, copy and paste the following API scopes into the One or More API Scopes section and separate them with a comma.  Next, click the Authorize button.

Paste the following into One or More API Scopes.,,,,,,,,,,,,,,

Classroom Teachers Group

In your Google Admin Console go to Groups, then click the group named Classroom Teachers ( Click Manage Users in Classroom Teachers, then add your teachers to this group to enable the Google Classroom feature for your teachers.