Could you clarify if you are targeting the mobile application as a negative criterion in the campaigns or you are targeting it in AdGroup level? Based on this
guide, you could only target the mobile application as negative criterion and/or you could target it in AdGoup level and of type Display Networks. If it's in AdGoup level, you should use the
AdGroupCriterionService.get() method. Also, could you provide your clientCustomerId and screenshots of the mobile application that you are targeting based in AdWords UI so that I could further investigate this? Please reply via
Reply privately to author.