I have followed the steps here to setup a test account: https://developers.google.com/google-ads/api/docs/first-call/test-accounts
I then followed the steps here to generate an OAuth2 client secret, client ID and refresh token: https://github.com/googleads/google-ads-dotnet/wiki/API-access-using-own-credentials-(desktop-application-flow) I used all of those credentials (in addition to a developer token generated on our main production manager account) to try to make a call using the Google API (C# client library) to retrieve a list of campaigns in the test using the customer ID of the test client account created in the first step. Unfortunately, I keep getting a Permission Denied error and I've exhausted all my options for troubleshooting. Full error stacktrace: Grpc.Core.RpcException: <http://www.google.com/url?sa=D&q=http%3A%2F%2FGrpc.Core.RpcException%3A> Status(StatusCode="PermissionDenied", Detail="The caller does not have permission") at Grpc.Net.Client.Internal.HttpContentClientStreamReader`2.MoveNextCore <http://www.google.com/url?sa=D&q=http%3A%2F%2FGrpc.Net.Client.Internal.HttpContentClientStreamReader%602.MoveNextCore>(CancellationToken cancellationToken) at Google.Ads.Gax.Interceptors.StreamingRpcInterceptor`1.MoveNext <http://www.google.com/url?sa=D&q=http%3A%2F%2FGoogle.Ads.Gax.Interceptors.StreamingRpcInterceptor%601.MoveNext>(CancellationToken cancellationToken) at Google.Api.Gax.Grpc.AsyncResponseStream`1.MoveNextAsync <http://www.google.com/url?sa=D&q=http%3A%2F%2FGoogle.Api.Gax.Grpc.AsyncResponseStream%601.MoveNextAsync>(CancellationToken cancellationToken) at Google.Ads.GoogleAds.V11.Services.GoogleAdsServiceClient.<>c__DisplayClass32_0.<<SearchStreamAsync>b__0>d.MoveNext <http://www.google.com/url?sa=D&q=http%3A%2F%2FGoogle.Ads.GoogleAds.V11.Services.GoogleAdsServiceClient.%3C%3Ec__DisplayClass32_0.%3C%3CSearchStreamAsync%3Eb__0%3Ed.MoveNext> () Any suggestions on what I should do? -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog: https://googleadsdeveloper.blogspot.com/ =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "Google Ads API and AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/170944a7-b064-42cb-99f2-6c3baab538f2n%40googlegroups.com.