Choosing a Program Structure
How to pick between Shared Engagement Pool, Performance Weighted Pool, and Top Score Wins for your program.
Last updated: April 9, 2026
A program structure decides what happens when a customer converts and more than one collaborator has engaged with that customer. It’s the rule Siren uses to split (or not split) a single conversion reward. You’ll face this choice when you’re configuring a program and the “structure” dropdown asks how credit should be divided.
Most simple affiliate programs don’t actually need this decision. If you only want the last collaborator who engaged the customer to be paid, that’s handled at the program group level through Newest Engagement Wins, and you don’t need a pool structure at all. The three structures on this page exist for programs that want to reward multiple contributors on a single sale.
All three require Siren Essentials.
Quick comparison
| Structure | What it does | Best for |
|---|---|---|
| Shared Engagement Pool | Splits the reward equally among every engaged collaborator | Flat multi-touch attribution |
| Performance Weighted Pool | Splits the reward proportionally by engagement score | Weighted multi-touch attribution |
| Top Score Wins | Gives the full reward to the single highest-scoring collaborator | One winner per conversion |
How to choose
Use Shared Engagement Pool if…
You want everyone who touched the sale to get the same cut, regardless of how much they contributed. This fits high-ticket sales cycles where several collaborators (a content creator, a demo host, a closer) each play a role that’s hard to rank, and you’d rather credit them equally than argue about weights. It also works when your commissions are large enough that an even split still pays each collaborator meaningfully.
Use Performance Weighted Pool if…
You want to credit every engaged collaborator but still pay the heavier contributors more. This is the right pick when your collaborators generate measurable engagement (views, webinar attendance, content interactions) and you want the split to reflect that. It avoids winner-take-all dynamics while keeping the incentive to actually contribute.
Use Top Score Wins if…
You want a single collaborator paid per conversion, and you want it to be the one with the highest engagement score rather than the newest or oldest engagement. This is useful when you can measure engagement quality reliably and you want to reward the collaborator whose work most influenced the buying decision. Be cautious if your engagement metrics are easy to game, because a winner-take-all structure amplifies that risk.
See the full details
- Shared Engagement Pool for an equal split among engaged collaborators.
- Performance Weighted Pool for a proportional split by engagement score.
- Top Score Wins for a single winner per conversion.