I am writing an Azure Function in C# using .NET core.

I have tried to authenticate as an APPLICATION per this page.

I've tried authenticating with a service account per this page.

In both cases I'm getting an access denied error message.

The root question I have is,

Which authentication method should I use for the Google Ads API from within an Azure Function?

Update:

In my latest attempt to use a service account I have this code

GoogleAdsConfig config = new GoogleAdsConfig()             {            OAuth2Mode = Google.Ads.GoogleAds.Config.OAuth2Flow.SERVICE_ACCOUNT,            OAuth2SecretsJsonPath = pathtojsonfile,            OAuth2PrnEmail = "something@somethingelse.iam.gserviceaccount.com",            OAuth2Scope = "https://www.googleapis.com/auth/adwords",            DeveloperToken = "********"         };                  var responseMessage = "";         var client = new GoogleAdsClient(config);                  // Get the GoogleAdsService.         GoogleAdsServiceClient googleAdsService = client.GetService(Services.V6.GoogleAdsService);         // Create the query.         string query =             @"SELECT              campaign.id,              campaign.name,              ad_group.id,              ad_group.name,              ad_group_criterion.criterion_id,              ad_group_criterion.keyword.text,              ad_group_criterion.keyword.match_type,              metrics.impressions,              metrics.clicks,              metrics.cost_micros          FROM keyword_view          WHERE segments.date DURING LAST_7_DAYS              AND campaign.advertising_channel_type = 'SEARCH'              AND ad_group.status = 'ENABLED'              AND ad_group_criterion.status IN ('ENABLED','PAUSED')          ORDER BY metrics.impressions DESC          LIMIT 50";         try         {             // Issue a search request.             await googleAdsService.SearchStreamAsync(customerId.ToString(), query,                 delegate (SearchGoogleAdsStreamResponse resp)                 {                     // Display the results.                     foreach (GoogleAdsRow criterionRow in resp.Results)                     {                         responseMessage +=                             "Keyword with text " +                             $"'{criterionRow.AdGroupCriterion.Keyword.Text}', match type " +                             $"'{criterionRow.AdGroupCriterion.Keyword.MatchType}' and ID " +                             $"{criterionRow.AdGroupCriterion.CriterionId} in ad group " +                             $"'{criterionRow.AdGroup.Name}' with ID " +                             $"{criterionRow.AdGroup.Id} in campaign " +                             $"'{criterionRow.Campaign.Name}' with ID " +                             $"{criterionRow.Campaign.Id} had " +                             $"{criterionRow.Metrics.Impressions.ToString()} impressions, " +                             $"{criterionRow.Metrics.Clicks} clicks, and " +                             $"{criterionRow.Metrics.CostMicros} cost (in micros) during the " +                             "last 7 days.";                     }                 }             );         }         catch (GoogleAdsException e)         {             responseMessage += "Failure:\n";             responseMessage += $"Message: {e.Message}\n";             responseMessage += $"Failure: {e.Failure}\n";             responseMessage += $"Request ID: {e.RequestId}\n";             throw;         }         return responseMessage; 

When I call this I get the following error:

{     "StatusCode": 16,     "Details": "Request is missing required authentication credential. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.",     "RequestId": "0Yk2OYrUATjwftZ5I0qi2g",     "Failure": {       "errors": [         {           "errorCode": {             "authenticationError": "NOT_ADS_USER"           },           "message": "User in the cookie is not a valid Ads user."         }       ]     }   }   

I have the service account set up with the Google Ads API Enabled. Why does it think I'm "NOT AN ADS USER" ???

Hi I have been using rest methods to integrate Google Ads API in C#. Everything seemed to be working fine but all of sudden I started getting 400 response with the error message.

{     "error": "invalid_grant",     "error_description": "Token has been expired or revoked." } 

As mentioned above that I am not using client library but instead using restsharp and testing all my end points using postman also.

Any reason why it is happening? My refresh token is also valid. I have been using this for one week. I have also not reached to the limit of refresh token as I have only generated refresh token 3 to 4 times when I was trying to set up the accounts.

I believe the validity of refresh token is life long then why it is happening?

I am having a problem with a data transfer from Google Ads. When I schedule the backfill I get the following error for some dates:

Invalid value: Load configuration must specify at least one source URI

When I check the log inside of the details of execution I get the following message:

Failed to start job for table p_ClickStats_5419416216$20201117 with error INVALID_ARGUMENT: Invalid value: Load configuration must specify at least one source URI

The weird part is that this happens for random dates which I had transfered before in a previous transfer. Did anyone have a problem similar to that?

Using Google Ads API "Get Account Hierarchy" to get all accounts. https://developers.google.com/google-ads/api/docs/account-management/get-account-hierarchy?hl=en

Found out that canceled accounts are not being retrieved.

I do see the canceled accounts are being reported in the UI and in their Google Data Studio connector. I guess both use the old AdWords API.

Is there a way to fetch and report canceled accounts via Google Ads API? Is it recommended to use the old AdWords API?

I am trying to Create a Client test account under Test manager account of google ads API but my test manager account is marked as closed. See below

As mentioned in the picture a, we need to use new google account to create test manager account that is not been used in production manager account, I did the same. I created new google account and created test manager account but when I try to generate Refresh token for test account by using OAuth playground, It generates an error. see picture b.

Picture a.

Picture b.

Am I doing something wrong to configure the test manager account? Is there anything I need to follow to enable test account? The request to generate refresh token is getting denied. Is it because my account is closed?