I'm trying to build a web application in ASP.NET Core MVC with C# where I can provide some benefit for Google Ad customers. I am struggeling with the part on how do I get access to the customers Ads Account Data through the Google Ads API.
What I figured out so far
I got the OAuth ClientID and Secret, have managed to declare and setup the ASP.NET Core Identity for Google, and I am able to register in my local WebApp with a Google Account and the Login is also working.
Is the API Token to be generated by my Google for my Application, e.g. would I need a Google Ads account for my Application itself OR do I need from each of my customers a API Token to access their data? Or is there a different way to access the customers Google Ads Campaign info?
For anyone who stumbles about this question as well. I had to create a new Google Ads Manager Account which is to be "used" by my Application through the API Token generated from there. In this new Ads Manager Account I can link customer accounts. Obivously the customer is getting an invitation and can accept/cancel the request.