Payment links go out in waves until sell-out.
In Pay After, winners do not get charged up front. They get a private checkout link. SuperSwipe sends those links in timed waves sized to the stock you still have, then waits, recounts, and sends the next wave. Fans pay while supplies last. The moment stock hits zero, link sending stops.
Why waves exist.
Pay After winners get a private checkout link instead of an up-front charge. Not everyone who gets a link will pay, so SuperSwipe sends more links than units left and lets fans check out while supplies last.
No card at entry
Fans enter with a form. After the draw, selected fans receive a private checkout link. Payment happens only if they still want the pair and stock is still there.
Not every link converts
Some winners never open the email. Some open it and pass. If you only sent one link per unit, unsold pairs would sit idle while the next fan waited.
Waves keep stock moving
Each wave oversubscribes remaining stock just enough to cover no-shows, then the next wave tops up from the fans still waiting in line.
The size of a wave.
SuperSwipe multiplies the stock still unsold by your oversend factor. That is how many links the wave sends. Unpaid links from earlier waves are stale by the next recount, so every wave is a fresh batch sized to live inventory.
The 20-minute rhythm.
After a wave, SuperSwipe waits 20 minutes from the last link sent, recounts what is still unsold, and sends a fresh wave to the next fans in line.
How waves end.
Waves end two ways: the drop sells out, or every eligible fan has had a link. Paid orders can never exceed real stock either way.
Sell-out ends sending
The moment remaining stock hits zero, SuperSwipe stops sending new links. Open unpaid links cannot create orders past real inventory.
Stock is the referee
Live inventory decides who can still pay. Being selected does not guarantee a pair. Fans who get there first while supplies last check out.
Every fan served
Stock can outlast demand. When no eligible fans are left to send to, new waves stop, but links already out stay payable while stock lasts. Auto-close then ends the draw 24 hours later; leave it off and the draw stays open until sell-out or you clear the stock. Second chance, when enabled, extends the pool with filtered entries first.
Payment waves, on paper.
The defaults that matter, with no fine print.
| Spec | Detail |
|---|---|
| Wave size | ceil(stock still unsold × oversend factor), a fresh batch each wave |
| Cadence | 20 minutes after the last link sent in the previous wave |
| Oversend factor | 1.00 to 3.00 per release · platform default 1.30 |
| Delivery channels | Email from superswipe.org, Shopify invoice email, SMS |
| Stop condition | New waves stop at sell-out, or when no eligible fans remain; links already out stay payable while stock lasts |
| Second chance | Optional, after every eligible fan has had a link |
Let the waves run the checkout.
Payment waves ship with every Pay After release. Set the oversend factor when you create the drop, then SuperSwipe sizes, times, and stops the links for you.