$oldPartition = root criterion found above;
$service = $user->GetService("AdGroupCriterionService", ADWORDS_VERSION);
$adGroupCriterion = new BiddableAdGroupCriterion();
$adGroupCriterion->adGroupId = $adGroup->getId();
$adGroupCriterion->criterion = $oldPartition->criterion;
$adGroupCriterion->criterion->id = -1;
$adGroupCriterion->biddingStrategyConfiguration =
$oldPartition->biddingStrategyConfiguration;
$adGroupCriterion->criterionUse = "BIDDABLE";
$adGroupCriterion->AdGroupCriterionType = "BiddableAdGroupCriterion";
$operation = new AdGroupCriterionOperation();
$operation->operand = $adGroupCriterion;
$operation->operator = "ADD";
4) When I perform the mutation I get the error: PRODUCT_PARTITION_SUBDIVISION_REQUIRES_OTHERS_CASE