Hi Nalica, CAPTCHA challenge is thrown by the ClientLogin API ( http://code.google.com/apis/accounts/docs/AuthForInstalledApps.html) if you request a large number of authTokens in a short period of time. It has nothing to do with AdWords API as such, so if you reuse your authTokens, you won't get Captcha challenges if you download several reports in a short period of time. I recommend this: Get an authToken as the first call in your script, then use that token to download all the reports. You won't get any CAPTCHA challenges at all this way.
Cheers, Anash P. Oommen, AdWords API Advisor. -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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