I have observed there is some discrepancy in the Spends, Impressions, Reach, Clicks, etc reported via Meta Ads UI and Meta Graph API.

Sticking to only one metrics, say Spends. Amount Spent reported through UI is ~6 Lakhs INR whereas through Graph API I am getting it as ~4.89 Lakhs INR for same period.

I tried adding the parameters like below action_report_time and action-attribution_windows but still the API response is not reconciling with the Meta UI.

Also, I tried extracting the data at campaign, adset and ad level, but the API response is not matching UI.

Added following parameters as well, but nothing helped.

use_account_attribution_setting
use_unified_attribution_setting
action_report_time

Any suggestion will be highly appreciated.

Quick Observation: After Oct'25, we have introduced Advantage+ campaigns and since then there is this discrepancy.