Marketing & Paid Advertising

Last-Touch Attribution

Credits 100% of a conversion to the final marketing touchpoint before purchase.

1 min readLast updated Apr 2026
Reviewed by Golden Digital·Operator-reviewed ecommerce reference

Credits 100% of a conversion to the final marketing touchpoint before purchase.

Why It Matters

Last-touch attribution is the default model for most ad platforms and reveals which channels are most effective at closing sales. Understanding last-touch performance is essential because it's how platforms like Google and Meta report and optimize campaigns.

Practical Example

Scenario

A customer sees a YouTube ad, browses your Instagram, and finally clicks a Google Shopping ad to purchase.

Result

Google Shopping receives 100% credit. However, this ignores that YouTube and Instagram warmed the customer up for conversion.

Pro Tips

  • 1Understand that all major ad platforms use last-touch by default—this is how they optimize and report
  • 2Use last-touch data to optimize bottom-of-funnel campaigns like branded search and retargeting
  • 3Compare last-touch ROAS to blended ROAS to see the full picture of channel contribution

Common Mistakes to Avoid

Over-investing in last-touch channels and starving top-of-funnel—eventually your retargeting pools dry up
Turning off channels that appear weak on last-touch without testing their incremental impact

Frequently asked questions

It's simple to implement, easy to understand, and directly shows which touchpoint closed the sale. Ad platforms prefer it because it makes their channels look effective.

Put it to work

Related Terms

First-Touch Attribution

A single-touch attribution model that gives 100% credit to the first marketing touchpoint.

Multi-Touch AttributionMTA

Distributes credit for conversions across multiple touchpoints in the customer journey.

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