@goforbrent
Thank you for the reply. Actually this seems to be because of timezone different. For example,
if timezone setting for the ad account is UTC + 3, does this look like the correct request url in order to pull the same number as what I see on the dashboard for 7/28?
POST https://ads-api.twitter.com/2/stats/jobs/accounts/18ce54d4x5t?entity=CAMPAIGN&entity_ids=8u94t&start_time=2017-07-27T21:00:00Z&end_time=2017-07-28T21:00:00Z&granularity=TOTAL&placement=ALL_ON_TWITTER&metric_groups=MOBILE_CONVERSION