Hi Thu, The Campaign Performance Report <https://developers.google.com/adwords/api/docs/appendix/reports/campaign-performance-report> is aggregated at the campaign level while the Account Performance Report <https://developers.google.com/adwords/api/docs/appendix/reports/account-performance-report> is aggregated at the account level which is why comparing data between these 2 reports would possibly yield discrepancies.
To help us identify the data discrepancies you are pertaining to, could you send to us privately the complete report definition <https://developers.google.com/adwords/api/docs/guides/reporting#create_a_report_definition> used for both reports and your clientCustomerId and specify which data are you pertaining to that are inconsistent between the 2 reports. Best regards, Peter AdWords API Team -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog and Google+: https://googleadsdeveloper.blogspot.com/ https://plus.google.com/+GoogleAdsDevelopers/posts =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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 --- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/adwords-api. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/c1e98449-6a24-4759-ab30-362cda730b31%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.