UPDATE:
I've tried with curl and postman, and the response is always an empty result -> [ ]
If I make, for example, a request to get all the campaigns of a customer (using the C# library or postman or curl) all work just fine!
I've tried to get simulations for all GoogleAds API objects, and none is working:
Ad Group
Ad Group Criterion
Bidding Strategy (portfolio)
Campaign
Campaign Criterion
The question is: the problem is in the GoogleAds API or in my account? Do I need to have some kind of special permissions?
I'm not using a test account, i'm using a production account with a Basic Access.
Please help me, as I have been stuck on this issue for about a month now.
Thanks in advance,
Cristian