Thank you for the prompt response.
Here is synchronous query invoked with HTTP GET Method
/1/stats/accounts/some_account_id?start_time=2016-04-02&end_time=2016-04-03&granularity=DAY&entity=PROMOTED_TWEET&entity_ids=some_promoted_tweet_id&placement=ALL_ON_TWITTER&metric_groups=BILLING&segmentation_type=GENDER
This returns HTTP status 200 with JSON data containing segment information.
After carefully reading both asynchronous and synchronous analytic API call, I’ve realized that I have discovered an unintended parameter: “segmentation_type”. This is not a bug, actually.
We will stop using synchronous query for segment data and
use asynchronous query instead.