Klaviyo Post-Purchase Flow: What to Send After the Order
The sale is not the finish line. The emails after it decide whether that customer buys again.
By Naomi, Klaviyo-certified, Signify Studio
Most stores send an order confirmation and then go quiet until the next sale. That leaves the best moment for building loyalty sitting empty. Someone who just bought is the most likely person on your list to buy again, and a good post-purchase flow is how you earn that second order.
Here is how I build one, and what I check when an existing one is underperforming.
1. Keep transactional emails separate
Order confirmations and shipping notices are not part of the marketing flow. They are expected, they get opened, and they should stay clean and fast. Your post-purchase marketing flow starts after those, so you are never delaying something the customer is waiting for.
2. Start with help, not a pitch
The first marketing email should make the product easier to enjoy: how to use it, what to expect, how to get the most out of it. For a supplement or a skincare product, that is usage guidance. For a subscription, it is setup. People who feel looked after are more likely to stay.
3. Ask for the review at the right time
Time the review request to when the customer has actually used the product, not the day it ships. For something that arrives in three days and takes two weeks to show results, wait. A request that arrives too early gets ignored, and a request that arrives at the right moment gets honest, useful reviews.
4. Recommend the next purchase
Suggest something that pairs with what they bought, or a refill timed to when they will run out. Replenishment is the strongest version of this for consumables. Use the order data in Klaviyo to work out how long a typical purchase lasts, then send the reminder a few days before it runs out.
Not sure your post-purchase flow is even sending? The free scan checks your sending setup in about ten seconds, so you know the emails are reaching people before you rewrite them.
5. Split first-time buyers from repeat buyers
A first-time customer needs reassurance and an introduction to your brand. A repeat customer needs recognition. Use a conditional split on the number of orders so each group gets a message that fits where they are. Telling a loyal customer to "welcome to the family" for the fifth time is a quick way to look careless.
6. Handle the exits
If a customer places another order while they are in the flow, think about whether the emails still make sense. If they request a refund or contact support, pause the marketing emails until it is resolved. These small checks protect the relationship.
7. Measure it properly
Judge the flow on repeat purchase rate, revenue per recipient and review volume, not opens. If repeat orders are low, check whether the flow is firing for every customer, including guest checkouts and orders from other sales channels. If the flow looks right but results are weak, a deliverability problem may be hiding underneath. Read why Klaviyo emails go to spam and the full Klaviyo flow performance audit.
Want me to build it?
The Flow Bundle covers the audit, the deliverability fix and four core flows, including post-purchase, for $2,500 one time. If you want ongoing management, see the pricing page.
Questions people ask me
How many emails should a post-purchase flow have?
Three to five is a good range for most brands. Add more only if your product has a long usage cycle that calls for it.
When should I ask for a review?
After the customer has had time to use the product. Match the timing to how long it takes to see results.
Should I include a discount in post-purchase emails?
Usually not in the first email. Save offers for a replenishment reminder or a cross-sell, where they have a clear reason to exist.
Is the post-purchase flow the same as order confirmation?
No. Order confirmations are transactional. The post-purchase flow is a marketing sequence that follows them.
Turn first orders into second orders.
Run the free scan, then decide what to fix first.