Failed to refresh access token - invalid_grant error

[Gal Talmor]

Hello,

I try to call TargetingIdeaService using the SDK (Google.AdWords NuGet, version 24.1.0).

First I received a "CUSTOMER_NOT_ACTIVE" error. I created new credentials and generated a refresh token in console.developers.google.com, and the error changed to "Failed to refresh access token". I receive this error in the official tests project I downloaded, so I guess that it's something in the credentials and not in the code.

Could you please help? Why does the token suppose to be refreshed if I just created it?

The request code:

             string accountId = "ACCOUNT_ID"; 

            AdWordsUser user = GoogleHelper.GetUserForTargetingIdeaService(accountId);

            using (var srv = user.GetService(AdWordsService.v201809.TargetingIdeaService) as TargetingIdeaService)

            {

                var pl = new List<SearchParameter>

                {

                   // ...

                };

                var selector = new TargetingIdeaSelector

                {

                    requestType = RequestType.STATS,

                    ideaType = IdeaType.KEYWORD,

                    paging = Paging.Default,

                    searchParameters = pl.ToArray(),

                    requestedAttributeTypes = new AttributeType[]

                    {

                        AttributeType.SEARCH_VOLUME, AttributeType.KEYWORD_TEXT,

                        AttributeType.AVERAGE_CPC, AttributeType.TARGETED_MONTHLY_SEARCHES, AttributeType.COMPETITION

                    }

                };

               

   TargetingIdeaPage page = await srv.getAsync(selector);

   // ...

          }

The response:

Google.Api.Ads.Common.Lib.AdsOAuthException: Failed to refresh access token. ---> System.AggregateException: One or more errors occurred. ---> Google.Apis.Auth.OAuth2.Responses.TokenResponseException: Error:"invalid_grant", Description:"Bad Request", Uri:""   at Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()

...

Thanks,

Gal

[Google Ads API Forum Advisor Prod]

Hi Gal,

Please reply privately to author your SOAP request and response so that I can further investigate. Please also let me know the user email that you were using with your credentials.

Thanks,
Anthony
Google Ads API Team

Anthony Google Ads API Team

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[Gal Talmor]

Hi,

I am sorry, I have no permission to reply to the author only. The option is disabled and I see this tooltip: "You do not have permission to reply to author in this group".

Anyway, I cannot see an actual API call, this exception is thrown from the Google.AdWords NuGet before actually make any API call.

I think that I miss "access token" parameter, I have "refresh token" only (which is different).  Is it necessary?

Thanks,

Gal

[Google Ads API Forum Advisor Prod]

Hi Gal,

You will need to obtain an access token. You can find more details on how to generate one here.

Regards,

[Gal Talmor]

Hi,

I am sorry but the link is not working.

Could you please check it again?

Thanks,

Gal

[Google Ads API Forum Advisor Prod]

Hi Gal,

Please try to open the link on a private window. If you still have issues, please send me a screenshot of the webpage.

[Gal Talmor]

Hi,

I am sorry for the delay.

It's working now! :)

I had to fill both OAuth2RefreshToken and OAuth2AccessToken in the AdWordsAppConfig.

To create a "refresh token":

https://accounts.google.com/o/oauth2/auth?access_type=offline&state&response_type=code&client_id=MY_CLIENT_ID&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fadwords 

 

To create an "access token":

https://accounts.google.com/o/oauth2/auth?client_id= MY_CLIENT_ID&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fadwords&redirect_uri=urn:ietf:wg:oauth:2.0:oob&access_type=offline&prompt=consent

Thanks,

Gal

[Google Ads API Forum Advisor Prod]

Hi Gal,

I am happy to know that your API is working now. Feel free to post your further concerns on this forum and our team would be happy to provide support.

Regards,

Ernie John Blanca Tacata Google Ads API Team

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