Following the validation rule changes in May 2017, we’re updating ad groups that contain only Dynamic Search Ad features.

Specifically, we’re updating the adGroupType to SEARCH_DYNAMIC_ADS for any ad group that has all of the following properties: After the above-mentioned ad groups have the SEARCH_DYNAMIC_ADS type, you’ll be able to add only DynamicSearchAd and ExpandedDynamicSearchAd objects, and not Keyword objects as BiddableAdGroupCriterion.

As always, if you have any questions, please post on the forum.