Meta Attribution in 2026: What Engage-Through Means and Why Conversions Are Missing

If your Meta campaigns have reported fewer click conversions since spring while your CRM receives just as many leads, the campaign isn't necessarily the problem. In 2026, Meta changed how conversions are counted in two places: since January, the API no longer returns two view windows, and since March, only a link click counts as a click. Likes, saves and shares now sit in their own category: engage-through.

This article explains what changed, why before-and-after comparisons are now misleading and how to reconcile Meta's numbers with your real leads. As of October 2026.

Key points

• Since January 12, 2026, the Ads Insights API no longer returns data for the 7-day and 28-day view windows.
• Since March 2026, Meta only counts link clicks as clicks for website and in-store conversions.
• Conversions after likes, comments, saves, shares and video views of 5 seconds or more are now called engage-through and reported separately.
• Billing doesn't change, only how conversions are classified in reporting.
• Click conversions before and after March 2026 are no longer directly comparable.
• Meta's click numbers now line up better with click-based tools such as Google Analytics or your own tracking.

Change 1: two view windows are gone

In October 2025, Meta announced that from January 12, 2026, the Ads Insights API would no longer return data for two attribution windows: 7-day view and 28-day view (Meta for Developers). According to Meta, 1-day, 7-day and 28-day click, 1-day engaged view and 1-day view remain available.

At the same time, Meta shortened retention for some data: breakdowns for unique metrics and hourly data are only available for 13 months, frequency breakdowns only for 6 months. Totals remain available for up to 37 months.

Who is affected? Mainly reporting tools, dashboards and custom reports that queried a 7-day or 28-day view window via the API. For most lead campaigns running on 7-day click and 1-day view, little changes. But if you reported video or awareness campaigns with longer view windows, you've seen smaller numbers or empty columns since January.

Change 2: only link clicks count as clicks

On March 3, 2026, Meta announced the second, bigger change (Meta for Business). Until then, any interaction with an ad could count as a click: a like, a save, a share. If a conversion followed, it was reported as a click conversion.

Since March, for campaigns optimizing for website or in-store conversions:

Meta says the goal is for click numbers to better match tools like Google Analytics, which also only see real clicks to the website. The changes rolled out gradually, so not every ad account got them on the same day.

What engage-through actually is

Engage-through attribution replaces the former engaged-view category and groups all conversions preceded by an interaction that wasn't a link click. The window is one day. Meta lowered the threshold for video views from 10 to 5 seconds, pointing to its own data showing that a large share of Reels conversions happens within the first seconds of attention.

For you as an advertiser, this means part of the conversions previously listed under click now sit in their own column. Whether the total stays the same depends on whether engage-through is included in your attribution setting.

Why your numbers look different now

Typical observations since spring:

• Fewer click conversions with the same budget and the same number of leads in the CRM.
• Higher cost per lead in Ads Manager when looking at click conversions only.
• Jumps in time series right when the change reached your account.
• Empty or lower values in dashboards that queried 7-day or 28-day view windows.

Important: these are changes in counting, not in how well your ads work. A lead that used to be a click conversion hasn't disappeared. It's listed elsewhere or falls into a window that no longer exists.

What the change means for lead generation

In lead generation, value isn't created at the form but later in sales. That's why the gap between Meta's numbers and the CRM has always been large. The Meta attribution changes close this gap in one place: if Meta now only counts link clicks as clicks, that's the same logic click-based website tracking uses. A lead either arrived through the ad or it didn't.

Two differences remain:

• Engage-through and view-through conversions can't be seen by any website tracking. The person didn't arrive through the ad but through Google search, a direct visit or another channel, and that's where a click-based view credits them.
• The attribution window: Meta only credits a lead if it happens within 7 days of the click (default). Leads that come after day 8 are missing in Meta, even though the ad started the journey.

How different windows and counting methods interact, and how to reconcile platform numbers with your CRM, is covered in detail in our guide to attribution windows.

What you should do now

1. Check your attribution setting

   In Ads Manager, look at the Attribution setting column to see which windows your reports use and whether engage-through is included. If you deliberately turned engaged view off before, check again now.

2. Mark the cut-off date

   Note when the change became visible in your account and don't compare click conversions across that date. For year-over-year comparisons, CRM leads are a better basis.

3. Report engage-through separately

   Use Compare attribution settings to show click, engage-through and view separately. Engage-through is a weaker signal than a link click, especially for retargeting.

4. Update reports and API queries

   Dashboards or scripts that query 7-day or 28-day view have returned nothing since January. Switch them to available windows.

5. Use real leads as your reference

   Compare Meta's numbers with the leads and deals that actually arrive in your CRM, and send them back to Meta via the Conversion API.

Why the Conversion API matters even more now

The changes affect reporting, not delivery. Still, Meta optimizes for the conversions it can match. The more real leads and deals arrive via the Conversion API with clean customer data, the better Meta can match them to a click. How to send the right data is covered in the guide on how to improve Meta Event Match Quality.

In lead generation, it pays to send not only the form but also later steps such as a won deal. That way, Meta learns which clicks lead to customers. More background in the article From CRM lead to real conversion.

How LeadMetrics helps

LeadMetrics counts leads from the perspective of your website and CRM, not the ad platform:

• Click-based attribution: Lead tracking captures the traffic source on each visit via UTMs, click IDs such as fbclid and its own ad parameters. Every lead is credited to a campaign and ad using first-click attribution or last-click attribution.
• Up to 90 days back: leads are matched to their session via session ID, email or phone number, even if they convert weeks after the click.
• Costs from the ad account: campaigns, ads and spend are synced daily from Meta Ads, so you see your cost per lead based on your real leads.
• Conversion API: leads, purchases and won deals are sent back to Meta server-side with hashed customer data, fbc and fbp.

That gives you a stable reference that doesn't change when Meta changes how it counts.