Google日历活动创建和Google商家帐户

I am using PHP and Google API for create the google calendar and invite the people. Previously it was worked. But now google change the API. So I also changed the library.

Library

After that I got the permission issue. So I found the solution from google developer account. Delegate domain-wide authority to your service account

https://developers.google.com/drive/web/delegation

But according to this method I didn't see any Manage third party OAuth Client access

Anybody know any solution or anyway to create the google calendar and invite people?

NOTE: I tried the gmail account. It is working. But when I try the google business account, I have above problem.

Screenshot

In the authentication->click on "Manage API client access". It is same as "Manage third party OAuth Client access" in the documentation.