Hi @samuarno
I think you didn’t work too much in the past with Twitter Ads…
https://dev.twitter.com/ads/analytics
Billed versus Estimates
The BILLING metrics group provides a real-time view into the estimated cost of a campaign. After three days, the official billed result will be available through the BILLING metric group’s billed_charge_local_micro and billed_engagements.
All billing stats are generally final within 3 days of the event (~99%), however we do process some spam filtering for up to 14 days from the date of the event.
Please note that spend metrics are not available for dates before 2013-10-10.
Regards,