I think that problem is in the Sandbox initialization. You didn't initialized your Adwords API Sandbox environment.
Read this article for more info http://code.google.com/intl/ru-RU/apis/adwords/articles/adwords_api_sandbox_best_practices.html#initsandbox Sorry, I've found link only in Russian, English version throws 404. You can translate it via Google Translate. Regards, Evgeniy. -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and discussion group: http://adwordsapi.blogspot.com http://groups.google.com/group/adwords-api =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords 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