Dear Google Ads API Support,
We’re currently working to automate *Demand Gen campaign setup* using the
*Google
Ads API (v19, PHP client)*. Our goal is to programmatically apply *audience
targeting*—including *interest segments*, *age ranges*, and *genders*—at
the *ad group level*.
We attempted the following setup to include user interest segments:
```
$audienceIds = [91906, 91904, 91907, 91908]; // Example user interest IDs
foreach ($audienceIds as $audienceId) {
$adGroupCriterion = new AdGroupCriterion([
'ad_group' => $adGroupResourceName,
'user_interest' => new UserInterestInfo([
'user_interest_category' =>
ResourceNames::forUserInterest($customerId, $audienceId)
]),
'status' => AdGroupCriterionStatus::ENABLED,
]);
$adGroupCriterionOperation = new AdGroupCriterionOperation();
$adGroupCriterionOperation->setCreate($adGroupCriterion);
$adGroupCriterionOperations[] = $adGroupCriterionOperation;
}
```
However, the request failed with this error:
```
CANNOT_ADD_AUDIENCE_SEGMENT_CRITERION_WHEN_AUDIENCE_GROUPED_IS_SET Audience
segment attachment is not allowed when use audience grouped bit is set to
true.
```
This indicates that *Demand Gen ad groups use audience_grouped* targeting
and do not accept individual user_interest criteria directly.
We would appreciate your help answering the following:
------------------------------
✅ What We Need to Know:
1.
*What is the correct and supported way to apply the following via the
API for Demand Gen ad groups when audience_grouped is enabled?*
-
Interest segments
-
Age group targeting
-
Gender targeting
2.
*Is there a recommended structure (e.g., ad_group.audience or similar
grouped targeting object) that should be used instead of AdGroupCriterion?*
3.
*Can you provide a working example or reference documentation for
applying these audience attributes under audience_grouped logic?*
4.
*Is it possible to modify these fields post-ad group creation, or must
it be done at the time of ad group setup?*
------------------------------
Thank you in advance for your assistance.
Best regards,
--
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