Whatever you reward, you get more of. Reward the invite and you get invites. Reward a delivered first order and you get customers.
A reward is an instruction. It tells customers exactly what to do to earn it, and some of them will do exactly that and nothing more. So pay on the event you actually want: a new customer's first order, delivered and past its return window. Nothing earlier.
| Reward paid on | What you get more of | Who pays this way |
|---|---|---|
| The invite sent | Spam, and legal exposure for messages sent in your name | Nobody you want to copy |
| The friend's signup | Fake accounts | PayPal at the start |
| The friend's first order | Self-referrals and returned orders | Many DTC apps by default |
| The first order, delivered | Customers | Whatnot; OVRLND's design |
| Revenue the friend generates | Active customers | Binance |
| Real use of the product | Users | Dropbox: app installed and logged in |
A reward is an instruction. Customers follow it exactly.
When I rebuilt OVRLND's referral design in 2026, the review produced two rules I now use everywhere.
The first: the referral reward triggers only on the referred friend's first completed purchase. In a sweepstakes that matters twice over. A reward on signup invites fake-email farming, and every fake entrant dilutes the odds of honest players, a trust problem and a legal one before it's a cost problem. The design also made the reward double-sided, gave each customer their own code, capped rewards at about ten per giveaway cycle and wrote the program into the official rules with a free way to earn the same entries.
The second is broader: no bonus is ever granted on a trigger the customer controls, like abandoning a cart or cancelling. Reward completed target behavior, or reward at random. Nothing else.
OVRLND had been doing the opposite. An abandoned-cart code handed out bonus entries to people who left, and a mystery bonus was planned for the same moment. A bonus that reliably appears when you abandon is a payment for abandoning. A variable one trains the trigger even harder than a posted amount, and sweepstakes forums publish the "mystery" within days. The code was retired. The surprise moved to after the purchase: the recovered order's confirmation opens with "your order came with something extra."
Whatnot's referral terms are a good checklist, because a marketplace moving billions attracts every kind of abuse:
Add one of your own: hold the inviter's reward until the friend's return window closes. A reward paid on an order that comes back is a reward for a customer you don't have.
Dropbox, Whatnot and OVRLND all pay both sides, and there's a reason beyond generosity. The inviter's reward gets them to ask. The friend's reward gives them a reason to say yes that isn't a favor to the inviter. A one-sided program makes the ask feel like the inviter is cashing in on a friend, and most people won't make it.
Move your inviter reward from the first order to delivery plus the return window for half of new inviters. If the delayed arm brings fewer referred customers who are still customers at day 90, per reward dollar, your customers need the instant payoff to ask at all, and the fix is a small instant reward plus the larger one on completion.
This is one chapter of Close the Loop, which is free and readable in full on a single page with no form in front of it.