Different value from ad manager

Hi I made the query below.

https://graph.facebook.com/v5.0/act_340252974?/fields=campaigns{insights{campaign_id,campaign_name,inline_link_clicks,impressions,clicks,reach,spend,objective,unique_actions,actions,inline_post_engagement}}&since=2019-12-01 00:00:00&until=2019-12-03 00:00:00 &access_token=xxxx.

I got the data, but the data is not the same as on facebook ad manager. Could help where this value is coming from and why this is different from the ad manager?

Best, Yeji

Asked about 9 months ago