How/Where do I enable Google my Business api in my app/project

Received approval of my api project/app for Google my Business All I have to do now is enable it. All ? I went back to the project and no matter what I do I can fin no mention of enabling it and cant find anything helpful anywhere. I did try connecting just to see and sure enough there's a big nas

elp losing the will to live with Google My Business API

I finally received an email on Friday to say that I ahve been approved. All I have to do now is enable it. All ? I went back to the project and no matter what I do I can fin no mention of enabling it and cant find anything helpful anywhere. I did try connecting just to see and sure enough there's