Glossary entry
What is an Attribution Window?
The attribution window is the time period after an ad interaction during which a conversion still gets credited to that ad. Default windows vary by platform - Meta is 7 days click + 1 day view, Google is 30 days click. Choosing the right window is the difference between honest measurement and self-deception.
Click-through vs. view-through
Click-through (CTC) credits a click that led to conversion. View-through (VTC) credits an impression that didn't get clicked but converted later. VTC is generous and inflates reported ROAS - apply it cautiously.
Why default windows mislead
A long click window (30+ days) credits ads for conversions that would have happened anyway. A short window (1 day) under-credits longer buying cycles. Match the window to your real sales cycle, not the platform default.
Cross-platform attribution
If a user clicks Google, then Meta, then converts, both platforms claim credit in their own dashboards. Use a third-party MMP, GA4 attribution, or your CRM as the source of truth.
How Unled Network helps
Managed Campaigns reconciles attribution across Google, Meta, TikTok, and your CRM monthly. We tune windows to your cycle, not the platform default.
Related Unled Network services
Frequently asked
What's the right click window for ecommerce?
7 days for impulse purchases, 14 days for considered purchases. 30 days inflates.
Should I use view-through attribution?
Sparingly. Useful for upper-funnel assessment, dangerous for performance bidding.
Did iOS 14 change attribution windows?
Yes - Meta capped to 7d click + 1d view by default. Conversion API extends this for server-side conversions.
How is GA4 attribution different?
GA4 uses data-driven attribution by default, distributing credit across touchpoints rather than last-click.
Related terms
How an Attribution Window? compares
| Factor | Option A | Option B |
|---|---|---|
| Default duration | 7 days click + 1 day view | 30 days click |
The choice of attribution window greatly affects conversion tracking and return on ad spend reporting, making it essential to align with business goals.
Practical implementation
To effectively implement an attribution window, start by analyzing your current conversion data. Determine the average time it takes for users to convert after interacting with an ad. Adjust the attribution window settings in your ad platform accordingly, and continuously monitor performance. Regular testing and optimization will help ensure accurate measurement.
Key takeaways for 2026
Understanding and correctly implementing an attribution window is crucial for accurate performance measurement. As marketing channels evolve, revisiting and adjusting your windows regularly will be important to stay ahead in a competitive landscape and ensure meaningful insights.