403 Forbidden error message when accessing Adwords API
mick....@bbconsult.co.uk
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).
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
We implemented catching
AuthTokenException in the stack trace.
Its ErrorCode field value
is BadAuthentication
Any suggestions/help is much appreciated.