Discrepancy between data in ad manager and events manager

Hi i have a question about differences i see in the results when i check my ad results and when i compare them with data in the events manager. I'm running 3 ads right now. In ads manager I don't have any data recorded for unique content views, unique add to carts and unique checkouts initiated. When checking data in events manager i have results for these metrics. I also double checked the results in google analytics, and in there I also see traffic from my ads. Any idea what might be the reason for this?

are you sure you're using the same pixel in both cases?