Ask an email marketer for their best-performing send and you will be shown a campaign that took 3 weeks and a design team. Ask for their best open rate instead and, if they are honest, it belongs to the order confirmation: a plain receipt that gets read by practically everyone, because the minutes after someone pays are the only minutes where they are genuinely waiting on your email. They just handed you money, they want proof it went through, and they are checking their inbox for it.
We run email for more than 140 DTC brands, and the most reliable flow we have shipped in the past year lives entirely inside that window. It is one email that can be built on any store running Order Editing. It's a simple trigger available in your Klaviyo once the app is installed, which makes this the simplest 6-figure build I know of, and also the most commonly skipped.
The window has a literal countdown on it
When Order Editing is live, every new order opens an edit window in which the customer can fix an address, change a size, or add something to the order before fulfillment locks it. The moment the window opens, the app fires an event into Klaviyo called Editing Allowed.
How long that window stays open is up to you. Order Editing lets you set the editing window to match your fulfillment speed — a same-day warehouse might keep it short, while a slower operation can leave it open longer. Most stores choose anywhere between 1 and 4 hours, but for simplicity, the examples in this article assume a 1-hour window.
Most brands treat that event as a customer support feature. Fewer "I typed my address wrong" tickets, fewer reshipped parcels, genuinely useful. Read the same event as a marketer, though, and it can be something else entirely: a purchase-intent signal with a deadline attached, firing at the exact peak of customer attention. Somebody who checked out 4 minutes ago has already made the hard decision, the one about trusting you with their credit card. Asking that person to add to an order that already exists carries none of the usual friction. There is no new shipping fee, no second checkout, no new decision about whether they trust you. For 1 hour, "add one more thing" is the easiest sell your store will ever make, and the clock that makes it urgent has the advantage of actually being real.
The flow, exactly as we build it
The build itself takes an afternoon. The details are what separate the stores where this makes money from the stores where it quietly does nothing, so here they are in full:
- Trigger on Editing Allowed, not on Placed Order. You want the flow tied to the window itself, so the timing still works even if you change the window length later.
- Wait 5 minutes. Long enough for the confirmation to land first and answer "did my order go through", short enough that nearly the whole window is still open when your email arrives.
- Send one email and put the deadline in the subject. A real subject line from one of our stores: "Upgrade to Pure Silver - you've got 59 minutes." This works because the deadline is real. Customers see fake countdown timers every day and ignore them. A real one still gets a reaction.
- Give the email one job: open your order. The button deep-links into the customer's own order page. Every extra step, like a login page or an account menu, loses people, and in a 1-hour window you don't get a second chance.
- Turn smart sending off. This is the one that catches nearly everybody. Smart sending suppresses email to anyone contacted recently, and minutes after an order confirmation, that is every single person in this flow. Leave it on and the flow sends to no one, and nothing in your dashboard will tell you.
- Stop when the job is done. Order Editing fires another event when a customer saves an edit, so we filter on Edits Saved and nobody who already used their window gets a follow-up. Nobody wants to be reminded to do something they already did.
- Add SMS for the consented. A short text a few minutes behind the email, same deep link, sent only to profiles with SMS consent. SMS makes sense here because most people read a text within a couple of minutes, and this opportunity expires in an hour.
- Split subscribers from one-time buyers if you sell subscriptions. A subscriber's best edit is adding to the box they already pay for, while a one-time buyer's is the upgrade or the add-on. Same window, different offer, noticeably different take rate.
The math that gets it to 6 figures
Run the numbers on your own store before you borrow mine, because it's a simple formula. Take a store doing 10,000 orders a month. Every order enters the flow, and in the post-checkout window open rates of 65 to 75% are normal, since the customer is already sitting in their inbox. Assume a modest 3.5% of recipients act on the offer (an upgrade, an add-on, a bumped quantity) at an average of $25 in added order value, and you get $8,750 a month, call it $105,000 a year from one email. Even if you halve the order volume, the flow still clears $50k. And because the offer rides on an order that already exists, it's extra margin on a parcel you were already going to ship. It doesn't pull forward or replace a future purchase.
There's a second benefit that's easy to miss. Every address corrected inside the window is a parcel that doesn't ship to the wrong house, which means no reship cost, no support ticket, and no 1-star "it never arrived" review 3 weeks later. The same email that makes money also prevents unnecessary costs.
Where it goes wrong
We audit a lot of Klaviyo accounts, and when this flow underperforms the cause is nearly always one of these things:
- the email arrives after the window has closed
- smart sending was left on and the sends are being skipped
- there is no Edits Saved filter, so customers get reminded to edit an order they already edited
- the button points at a login page instead of deep-linking into the order
- the events are flowing into Klaviyo and no flow was ever built on them at all, which is the state we find most installed stores in
And there's one more mistake worth its own paragraph, because it kills this flow even when it's working: judging it by Klaviyo attributed revenue. This flow will almost never show attributed revenue. When a customer adds to their order, the extra money lands on the original order, and that order was placed before the flow triggered. Klaviyo can't attribute a purchase that happened before the email went out. So the flow can be making you thousands a month while the Klaviyo report says close to zero. Measure it where the money actually shows up instead: upsell revenue and edits saved inside Order Editing's own reporting, and the difference in average order value between edited and non-edited orders. We've seen brands switch off a working flow because they were reading the wrong report.
Every order opens this window. It happens all day, every day, on every store running the app. The only question is whether there's an email waiting inside it.
Copy the exact email flows we run across 140+ DTC brands
Our swipe file is the playbook from running email for 140+ DTC brands: how to build each flow, how to set it up so it makes the most money possible, and that includes the order editing playbook you just read about.
