Your Meta ad reports are probably overstating performance. Here's how to fix it: attribution windows & overlooked metrics.
Why the default attribution window overstates performance
Meta's default attribution setting is 7-day click + 1-day view. That means any conversion that happens within 7 days of a click, OR within 1 day of someone merely seeing your ad on screen, gets credited to the campaign.
The 7-day click number is defensible. Someone clicked, then converted. Causal link is reasonable.
The 1-day view number is the problem. An "impression" on Meta is counted the moment 1 pixel of your ad touches a user's screen. Not watched. Not engaged with. Scrolled past. If that person buys from you within the next 24 hours, Meta credits your ad.
For anyone already in your audience (retargeting pools, existing customers, brand-aware buyers), this inflates results dramatically.
Taken from a real client account:
697 purchases reported on Meta's default setting.
533 of those were credited to 1-day view (saw the ad, didn't click, purchased within 24 hours anyway).
Only 153 were credited to 1-day click.
The honest number here isn't 697. It's much closer to 153. The 533 sitting in between is a mix of people who were going to buy anyway and a smaller signal that the ad may have nudged them. Reporting 697 as "ads drove 697 purchases" overstates your campaign's impact by roughly 4.5 times.
The fix is the first setting you should change on every account this week:
Report on 1-day click and 7-day click. Treat 1-day view as a separate line, not a default.
For ecommerce in particular, discuss 1-day view with the client before including it anywhere. For non-ecom campaigns, most of the time it should be off entirely.
And never optimize beyond 7 days. The 28-day click window exists, but it's for understanding the decision cycle on high-consideration or B2B purchases, not for running your reporting or optimization against. As Taubert puts it in the deck: "Use 28-day click only as an indicator, not as optimization. Do not report on this."
Platform defaults are worse than you think
Meta's defaults are at least in the right neighborhood. Other platforms are further off.
Meta: 7-day click, 1-day view.
TikTok: 7-day click, 1-day view.
LinkedIn: 30-day click, 7-day view.
Pinterest: 30-day click, 30-day view.
Snapchat: 28-day click, 1-day view.
If your in-house team or agency hands you a cross-channel performance report with the default settings untouched, LinkedIn, Pinterest, and Snapchat numbers will look disproportionately strong against Meta and TikTok. That isn't the platforms performing differently. It's the windows being different.
Normalize these before you compare anything across channels.
The upgrade: incremental attribution
Meta recently released a beta feature called incremental attribution. It answers the question that default reporting doesn't: how many of these conversions would not have happened without the ad?
Take a product that sells 100 units a day organically. You run ads and it sells 150. Default reporting credits your ads with most of that 150. Incremental attribution credits your ads with the 50 you wouldn't have had otherwise. That's the honest number.
Two real client accounts from the deck, both for the same employer running hiring campaigns:
Office staff campaign: 75% of conversions were incremental. The ads are doing heavy lifting in an audience that doesn't already know the brand. Signal: grow this budget.
Technical roles campaign: only 20% of conversions were incremental. This audience already knows the employer. Signal: shift budget to retargeting, stop paying prospecting CPMs.
Two campaigns, same account, completely different budget decisions. Default reporting would have shown both as "working". Incremental reporting tells you where to put the next euro.
This feature is in beta. Turn it on, use it as a sanity check alongside your 1-day click and 7-day click reporting, and watch for the gap between "reported conversions" and "incremental conversions" on each campaign. The bigger the gap, the more that budget is propping up conversions that would have happened anyway.
The creative metric you should be optimizing before any conversion metric
One metric that almost no weekly report leads with, and probably should: hook rate.
Hook rate is the percentage of people who watched at least 3 seconds of your video, divided by total impressions. It measures the only thing that matters before the ad can do its job: did the creative stop the scroll?
Formula: (3-second views ÷ impressions) × 100%
Decent: 20 to 25%
Strong: 30%+
Top performing creative: 50%+
A brand awareness campaign reviewed in the deck serves as the cautionary tale: 2,654,836 impressions, only 1.6% hitting 3-second views, 0.18% hitting ThruPlay. That's not a brand awareness campaign. That's paying for impressions against content nobody is watching.
Hook rate predicts CTR. CTR predicts traffic. Traffic predicts conversions. Optimizing on the downstream metric without checking the upstream one means you're diagnosing a conversion problem that's actually a creative problem.
Add hook rate to the top of your weekly reporting. If it's below 20%, the conversion column isn't the problem to fix first.
What to change this week
Four concrete moves, in priority order:
Switch your default Meta reporting to 1-day click + 7-day click. Keep 1-day view available as a comparison column, not a primary metric. Do this on every active account.
Normalize cross-channel attribution windows before comparing platforms. Especially for LinkedIn, Pinterest, and Snapchat.
Turn on incremental attribution (beta) on your top 3 spending campaigns. Compare the gap between reported and incremental conversions. Treat the ratio as a budget allocation signal.
Add hook rate as the top row of your weekly creative report. Anything below 20% gets creative iteration priority before anything in the conversion column.
None of this is harder than an afternoon of setup. The compounding effect on how you allocate budget and judge creative over the next quarter is large.
What this means for your 2026 reporting
Attribution and creative measurement are the two levers that determine whether your paid social budget is being spent on ads that drive incremental revenue or ads that take credit for revenue you'd have earned anyway. Most agencies and in-house teams are running on default settings because nobody has asked them to change.
Ask them.
