Hi Dongliang, Yes, you can make use of the CustomerSyncService <https://developers.google.com/adwords/api/docs/reference/v201705/CustomerSyncService>. It will return all the campaigns irrespective of whether it was changed or not. But the response will indicate if there was a change to the specific campaign or not. On the other hand the service will only return the AdGroups and its criterion which were changed. Please check here <https://developers.google.com/adwords/api/docs/reference/v201705/CustomerSyncService#response> for details about the response of this service. If there were multiple updates performed on the same criterion, the service might not indicate each change. The results of this service will however contain that AdGroupCriterion indicating that there was some change to that object. You can check the sample <https://github.com/googleads/googleads-java-lib/blob/master/examples/adwords_axis/src/main/java/adwords/axis/v201705/accountmanagement/GetAccountChanges.java> for CustomerSyncService (Java). Samples in other languages can be found here <https://developers.google.com/adwords/api/docs/clientlibraries>.
Please give it a try and let me know if you have any additional questions. Thanks, Sreelakshmi, 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/ca03dace-b271-4ec0-9e5a-fb50c086ead3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
