Attribution Models Explained for Affiliate Marketing

An attribution model is the rule that decides which marketing touchpoints get credit for a conversion. In affiliate marketing, it decides which partner earns the commission when a customer clicks several links before buying. Most affiliate programs use last click, but understanding the alternatives helps brands reward partners fairly.

Key takeaways

Note: Google Ads and Google Analytics 4 retired several rule-based models (first click, linear, time decay, position-based) in 2023 and now focus on data-driven and last click. Affiliate platforms may still offer them.

• Content and review partners often introduce customers early.
• Coupon and cashback partners often appear at the end.
• Pure last click can over-reward late touches and under-reward discovery.

• Window: how long after a click a conversion still counts (for example 7, 30 or 90 days).
• Deduplication: when several channels claim the same sale, the brand decides which one is credited (for example paid search vs affiliate).

1. Start with last click if you need simplicity and clear payouts.
2. Analyse multi-touch reports to see which partners assist sales.
3. Reward assisting partners with bonuses or higher rates if they bring new customers.
4. Write the rules in your program terms.

Attribution is about fairness and clarity. Use a model you can explain, measure assists, and reward partners for the value they really add. Related: Affiliate Tracking Explained and Cashback and Coupon Affiliates.