403 Forbidden error message when accessing Adwords API

[d2...@hotmail.com]

Hello,

 

I’m wondering if you can help.

We have access to the Google Adwords Developer API access token approved, and downloaded a sample .NET console application code from Adwords API web page in Feb 2013 – which worked fine then. 

 

When we tried to test it again now, we discovered '403 forbidden' error message (see copy of error details below for full error details).

An exception occurred while running this code example. System.Reflection.TargetInvocationException (Exception has been thrown by the target of an invocation.)

   at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   at Google.Api.Ads.AdWords.Examples.CSharp.Program.InvokeRun(Object codeExample, AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\sample projects\examples\adwords\csharp\Program.cs:line 140
   at Google.Api.Ads.AdWords.Examples.CSharp.Program.RunACodeExample(AdWordsUser user, Object codeExample) in C:\Dev\QuickWins\Google Adwords\sample projects\examples\adwords\csharp\Program.cs:line 99

Caused by

System.ApplicationException (Failed to retrieve campaigns)

   at Google.Api.Ads.AdWords.Examples.CSharp.v201206.GetCampaigns.Run(AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\sample projects\examples\adwords\csharp\v201206\BasicOperations\GetCampaigns.cs:line 100

Caused by

Google.Api.Ads.Common.Lib.AuthTokenException (AuthToken login failed. See ErrorCode for more details.)

   at Google.Api.Ads.Common.Lib.AuthToken.GenerateToken() in C:\Dev\QuickWins\Google Adwords\sample projects\src\Common\Lib\AuthToken.cs:line 247
   at Google.Api.Ads.Common.Lib.AuthToken.GetToken() in C:\Dev\QuickWins\Google Adwords\sample projects\src\Common\Lib\AuthToken.cs:line 192
   at Google.Api.Ads.AdWords.Lib.AdWordsSoapClient.InitForCall(String methodName, Object[] parameters) in C:\Dev\QuickWins\Google Adwords\sample projects\src\AdWords\Lib\AdWordsSoapClient.cs:line 78
   at Google.Api.Ads.Common.Lib.AdsSoapClient.MakeApiCall(String methodName, Object[] parameters) in C:\Dev\QuickWins\Google Adwords\sample projects\src\Common\Lib\AdsSoapClient.cs:line 210
   at Google.Api.Ads.Common.Lib.AdsSoapClient.Invoke(String methodName, Object[] parameters) in C:\Dev\QuickWins\Google Adwords\sample projects\src\Common\Lib\AdsSoapClient.cs:line 127
   at Google.Api.Ads.AdWords.v201206.CampaignService.get(Selector serviceSelector) in C:\Dev\QuickWins\Google Adwords\sample projects\src\AdWords\v201206\AdWordsApi.cs:line 3167
   at Google.Api.Ads.AdWords.Examples.CSharp.v201206.GetCampaigns.Run(AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\sample projects\examples\adwords\csharp\v201206\BasicOperations\GetCampaigns.cs:line 83

Caused by

System.Net.WebException (The remote server returned an error: (403) Forbidden.)

   at System.Net.HttpWebRequest.GetResponse()
   at Google.Api.Ads.Common.Lib.AuthToken.GenerateToken() in C:\Dev\QuickWins\Google Adwords\sample projects\src\Common\Lib\AuthToken.cs:line 232

 

Does anyone have any suggestions to why this error appears?

Has something changed with the API/DeveloperToken access since Feb 2013 (maybe something related to OAuth 2.0)?

May be something is wrong in our config file?

Your help is much appreciated – thank you. Please feel free to ask if you need any clarifications.

Many thanks,

Dhruvesh

 

[rob]

It looks like you're using v201206, which is deprecated. (From what I can see here - you probably just need to upgrade your library to current [v201302]) 

[d2...@hotmail.com]

Hi Rob,

 

Thanks for getting back to us - we have exactly the same issue with running examples with the updated library referencing both v201209 & v2013002.

 

Our current code does not go as far as attempting to retrieve campaigns, for the moment it is just trying to pass authentication with OAuth using the developer token - which it is failing at.

 

 

The below is the error log information from the latest version:

 

This code example lists all campaigns. To add a campaign, run AddCampaign.cs.

An exception occurred while running this code example. System.Reflection.TargetInvocationException (Exception has been thrown by the target of an invocation.)

   at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)

   at Google.Api.Ads.AdWords.Examples.CSharp.Program.InvokeRun(Object codeExample, AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\awapi_dotnet_lib_v15.8.0\examples\CSharp\Program.cs:line 178
   at Google.Api.Ads.AdWords.Examples.CSharp.Program.RunACodeExample(AdWordsUser user, Object codeExample) in C:\Dev\QuickWins\Google Adwords\awapi_dotnet_lib_v15.8.0\examples\CSharp\Program.cs:line 130

Caused by

System.ApplicationException (Failed to retrieve campaigns)

   at Google.Api.Ads.AdWords.Examples.CSharp.v201302.GetCampaigns.Run(AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\awapi_dotnet_lib_v15.8.0\examples\CSharp\v201302\BasicOperations\GetCampaigns.cs:line 100

Caused by

Google.Api.Ads.Common.Lib.AuthTokenException (AuthToken login failed. See ErrorCode for more details.)

   at Google.Api.Ads.Common.Lib.AuthToken.GenerateToken() in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AuthToken.cs:line 247
   at Google.Api.Ads.Common.Lib.AuthToken.GetToken() in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AuthToken.cs:line 192
   at Google.Api.Ads.AdWords.Lib.AdWordsSoapClient.InitForCall(String methodName, Object[] parameters) in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AdWordsSoapClient.cs:line 66
   at Google.Api.Ads.Common.Lib.AdsSoapClient.MakeApiCall(String methodName, Object[] parameters) in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AdsSoapClient.cs:line 211
   at Google.Api.Ads.Common.Lib.AdsSoapClient.Invoke(String methodName, Object[] parameters) in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AdsSoapClient.cs:line 127
   at Google.Api.Ads.AdWords.v201302.CampaignService.get(Selector serviceSelector) in c:\src\MyProjects\now\Common library base\adwords\compile\v201302\AdWordsApi.cs:line 4949
   at Google.Api.Ads.AdWords.Examples.CSharp.v201302.GetCampaigns.Run(AdWordsUser user) in C:\Dev\QuickWins\Google Adwords\awapi_dotnet_lib_v15.8.0\examples\CSharp\v201302\BasicOperations\GetCampaigns.cs:line 83

Caused by

System.Net.WebException (The remote server returned an error: (403) Forbidden.)

   at System.Net.HttpWebRequest.GetResponse()
   at Google.Api.Ads.Common.Lib.AuthToken.GenerateToken() in c:\src\MyProjects\now\Common library base\adwords\compile\Lib\AuthToken.cs:line 232

 

 

Any suggestions/help is much appreciated.

 

Thanks,

Dhruvesh

[Anash P. Oommen (AdWords API Team)]

Hi Dhruvesh,

There's an AuthTokenException being thrown in the stack trace, catch it and inspect the ErrorCode field to find out why you are getting the error. Post the details on this thread, and I can help you.

Cheers,

Anash P. Oommen,

AdWords API Advisor.

[d2...@hotmail.com]

Hi Anash,

 

Thank you for your suggestion.

 

 

The developer has reported the following feedback:

 

      I've followed to your recommendation and got error code:

      ErrorCode = BadAuthentication

      For your convenience I've also attached our .config file.

 

Do you think it is worthwhile setting up Fiddler logging for further details?

 

Thank you in advance for your help.

 

Many thanks,

Dhruvesh

[d2...@hotmail.com]

Hi,

 

Can anyone help with this issue?   As we still haven't managed to resolve.

 

Many thanks,

Dhruvesh

[Mikhail Astafyev]

Hi d2! Did you managed to resolve this problem? If yes I would like you to share the solution!

Thanks!