We're using the ValueTrack parameter {product_partition_id} to retrieve the ID of the product partition each time the user clicks a shopping ad. And we're also requesting PRODUCT_PARTITION_REPORTs to capture metrics of these IDs (Criterion ID) during a given period of time.
In the past these product partitions ids were always unique, i.e. product partitions in different campaigns and ad groups always had a unique id, so that we could monitor how many clicks and conversions we achieved per product partition (partitionType=subdivision). Since january we're receiving the id 18283950120 for hundreds of different adgroups in several different campaigns so that we can't tell the difference between these when a ad gets clicked and the ValueTrack parameter gets filled. Looks like all criterions with productGroup='* /' and partitionType='Subdivision' do now have the same id 18283950120 . I'm aware that identical criterions do get the same ID, but we always had unique IDs in the past. Since there's no ValueTrack parameter for the AdGroupID I can't figure out how to retrieve a unique value to count clicks and conversions on the subdivision level. Some example rows (PRODUCT_PARTITION_REPORT): <row criterionID='*18283950120*' campaignID='248292902' campaign='111AB - Produktanzeigen D-H' adGroupID='12740398382' adGroup='Gossard #59424' avgCPC='192500' clicks='40' totalConvValue='1.00' cost='7700000' convRate='2.50%' conversions='1.00' costConv='7700000' productGroup='* /' partitionType='Subdivision'/> <row criterionID='*18283950120*' campaignID='248296622' campaign='111AE - Produktanzeigen Q-S' adGroupID='12755670062' adGroup='stewi #55363' avgCPC='147500' clicks='4' totalConvValue='0.00' cost='590000' convRate='0.00%' conversions='0.00' costConv='0' productGroup='* /' partitionType='Subdivision'/> <row criterionID='*18283950120*' campaignID='248296622' campaign='111AE - Produktanzeigen Q-S' adGroupID='12755637422' adGroup='Rieker #58319' avgCPC='181667' clicks='18' totalConvValue='1.00' cost='3270000' convRate='5.56%' conversions='1.00' costConv='3270000' productGroup='* /' partitionType='Subdivision'/> Greetings from Germany Friedrich -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ 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/983f85f8-7a33-4505-9b6f-09c912858018%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.