Hi Cory,
Thanks for reaching out. With regards to your concern, you can use the AdGroupCriterionService.GetAdGroupCriterion to fetch your WebPage criteria that were created purposely for triggering your Dynamic Ads Target. Please refer to this code example but replacing it with the AdGroupCriterionService and adding AdGroupCriterionField.Parameter to my selector.
Thanks,
Nirmita Patel Google Ads Team
Hi Cory,
Thanks for reaching out. You can use the AdGroupCriterionService.MutateAdGroupCriterion using AdgrouCriterionOpration for adding and removing ad group criterion. We do not have exact sample code example but you may refer to this code example to add targeting criterion but replacing it with the AdGroupCriterionopration instead of CampaignCriterionOperation.
Let me know if you have any questions.
Thanks,
Nirmita Patel Google Ads Team