The value of "Audience" and "Reach" which are the analytics data items(Metrics) acquired by API have been set to "0" since end of the December regardless of the advertiser.
Previously, we colud have acquired the values as same as value of Management Center.

the other Metrics items such as "Clicks" and "Displays" have been acquired normally.
Did the acquisition condition for "Audience" and "Reach" changed due to changing the specifications?