Enable the Google API. Once you received the email from Google saying you were approved, you need to enable your Google API. Enter the basic setup linked in the confirmation email, see below.

Note: if you’ve got an existing project with the Google My Business API approved for it, use that one. Do not create a new one. Google My Business will only allow access to the API for one project.

Use the first project that you applied with

Please follow these instructions to enable it.

https://docs.google.com/document/d/19EoW-aLNQV6NyKjxXVLXfgQ0cG0NfgIKycSm9UPNX68/edit?usp=sharing

If you cannot find google my business API click on this link https://console.cloud.google.com/apis/library/mybusiness.googleapis.com

Enable this APIs

My Business Business Information API

My Business Notifications API

My Business Account Management API

My Business Q&A API

My Business Verifications API

(if you don’t know how to do that click here)