Hello Moinak,
The very first request to the sandbox will initialize testing accounts on the server. This request should have no clientEmail or clientCustomerId supplied and needs to be a get request to the CampaignService as described here: http://code.google.com/apis/adwords/docs/sandbox.html After this is done you can use ServicedAccountService to find out client account ids. -Danial, AdWords API Team. -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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