Not sure what you mean as far as Null PlaceHolders, but it should work like this:
Say you are creating 5 Ads, so you are uploading 5 AdGroupAdOperations with 5 AdGroupAds (lets call them AdGroupAd1 - AdGroupAd5). Say there was something with ads 2 and 4, but 1, 3, and 5 completed fine. You should get back 5 Operands in results: AdGroupAd1, PlaceHolder, AdGroupdAd3, PlaceHolder, AdGroupAd5. These AdGroupAd1, 2, and 5 should have their Ids filled in. Also note that order of these Operands is exactly the same as the ones you uploaded with mutate(). You should also get 2 ApiErrors in errors. First error tells you why AdGroupAd2 failed and second - why AdGroupAd4 failed. -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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