Why Your Meta Conversions Dropped: Engage-Through Attribution
Engage-through attribution moved your numbers, not your sales
If your Meta click-through conversions dropped 15 to 30 percent this spring with no change to spend or targeting, you are not broken. You are looking at the aftermath of engage-through attribution, the model Meta rolled out in March and reinforced again at its June 18 IAB Newsfront. Search interest in "why did my Meta conversions drop" has climbed all year, and r/PPC and r/FacebookAds keep relitigating the same panic in thread after thread. The short version: your conversions did not disappear. They changed buckets.
What engage-through attribution actually changed
For years, Meta counted a lot of soft signals toward your results. A like, a comment, a save, a carousel swipe, a short video view: many of these quietly fed your click-through conversion column. As of March 2026, that stopped. Click-through attribution now counts only real outbound link clicks. Everything else moved into a new bucket called engage-through, which covers likes, shares, saves, comments, carousel swipes, and video views of five seconds or more, with a fixed one-day conversion window.
At the June IAB Newsfront, Meta confirmed three follow-on tweaks: engaged video views are now counted after five seconds instead of ten, engage-through is available when you optimize for value, and the one-day engaged-view bucket for static image ads is being retired. Put together, the reporting you trusted in February is not the reporting you have now.
Why did my Meta conversions drop in 2026?
Because the credit got redistributed, not deleted. A purchase that used to land in click-through because someone liked your Reel before buying now lands in engage-through. If you only watch the click-through column, you see a cliff. If you add the engage-through column, you see the same revenue, sorted differently. The real trap is making budget decisions on a metric that quietly changed definition underneath you. Operators who paused "underperforming" campaigns in March were often pausing winners.
There is a second-order effect worth naming. With the engaged window compressed to five seconds and one day, your creative has to earn attention faster than ever, and your measurement now rewards it for doing so. This is the same direction Andromeda is pushing: the first two seconds of a video carry most of the conversion weight. Thin hooks lose twice, once in delivery and once in what you are even allowed to see.
What to do this week
Add the engage-through column to every report and rebuild your baseline from mid-March forward. Stop comparing post-change numbers to pre-change numbers as if they measure the same thing. Then judge campaigns on blended performance, total conversions and revenue across both buckets, not click-through alone. If you run value campaigns, confirm engage-through is actually populating before you trust the totals.
Most operators do not have time to re-baseline every account by hand, re-read attribution columns daily, and rework creative to a five-second standard all at once. That is the gap Run1Ads.ai is built to close. It runs ecommerce, Amazon-seller, and hotel Meta accounts end to end, and its vertical-tuned models read the full attribution picture rather than reacting to one column Meta just redefined. When Meta moves the goalposts, the system re-baselines and keeps optimizing on real outcomes instead of firing off a false-alarm pause. More verticals are launching soon. For founders who do not want to babysit Ads Manager through every measurement change, that is the entire point.
Takeaway: Your Meta conversions did not fall, they moved to engage-through. Add the column, reset your baseline to mid-March, and judge on blended results.