hi, I am adding Audience or interest to my adgroup but getting error Internal API error.
$criterionUserInterest = new CriterionUserInterest();
$criterionUserInterest->setId($interest['Criterion_ID']);
$interestBiddableAdGroupCriterion = new BiddableAdGroupCriterion();
$interestBiddableAdGroupCriterion->setAdGroupId($adGroupId);
$interestBiddableAdGroupCriterion->setCriterion($criterionUserInterest);
$BiddableAdGroupCriterionOperation = new AdGroupCriterionOperation();
$BiddableAdGroupCriterionOperation->setOperand($interestBiddableAdGroupCriterion);
$BiddableAdGroupCriterionOperation->setOperator(Operator::ADD);
$operations[] = $BiddableAdGroupCriterionOperation ;