Glossary: Last-touch Attribution

Last-touch attribution credits a conversion to the latest eligible recorded touchpoint before it, helping teams study closing activity while accounting for identity gaps and attribution windows.

What is last-touch attribution?

Last-touch attribution assigns credit for a conversion to the latest eligible marketing or product touchpoint recorded before the conversion. It helps teams understand which observed interaction most immediately preceded an activation, wallet connection, or onchain action.

How it works

Define the conversion, identity unit, eligible channels, and lookback window. The model finds the most recent qualifying touch before conversion. Decide how to treat direct traffic, returning visits, organic activity, and wallet-linked sessions so the rule is reproducible.

Example

A user first discovers a protocol through a newsletter, later reads a guide, then returns from a search ad and swaps. If each visit can be joined to the same journey, last-touch credits the search ad.

What it is useful for

Use last touch to understand which interaction tends to precede conversion and to monitor lower-funnel campaign performance. Compare it with first-touch attribution to distinguish discovery from closing activity, and check post-conversion retention before shifting budget.

Limitations and common mistakes

Last touch can over-credit branded search, direct visits, or retargeting that reaches people already likely to convert. It does not establish causality. Missing referrers, privacy controls, multiple devices, and incomplete links between web sessions and wallets can alter the result. Keep the conversion window and direct-traffic policy explicit.

Related reading

Explore First-touch Attribution, Attribution Model, Attribution Window, and onchain attribution.

FAQs

What does last-touch attribution answer?

It shows the last observed eligible touchpoint before a conversion under the model’s identity and window rules.

Does last touch prove a channel caused conversion?

No. It assigns credit by a rule and should be interpreted alongside other evidence.

How is it different from first touch?

Last touch credits the latest eligible touchpoint before conversion; first touch credits the earliest.

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