Abandoned cart flows are one of the most over-engineered pieces of Klaviyo setup out there. It's tempting to add a fourth, fifth, sixth email — more touchpoints feels like more chances to recover the sale. In practice, past email three, you're mostly just training people to unsubscribe.
What each email should actually do
Three emails is the useful ceiling for most stores, and each one has a different job. Stacking more emails on top rarely adds recovered revenue — it just adds noise.
| Timing | Purpose |
|---|---|
| ~1 hour after | Simple reminder — what's in the cart, one clear link back to checkout. No discount yet. |
| ~24 hours after | Address the hesitation — reviews, product detail, answer the objection that's probably holding them back. |
| ~48 hours after | Optional nudge — a small incentive or genuine urgency (low stock, free shipping threshold), only if the first two didn't convert. |
Why more isn't better
Each additional email past the third has sharply diminishing returns — the people who were going to come back usually do so within that 48-hour window. Emails four and five mostly reach people who've already decided not to buy, and sending to them repeatedly does more damage to your sender reputation and unsubscribe rate than it does good.
If your open rates are dropping off a cliff by email three, that's not a sign to add more — it's a sign the first two aren't doing their job.
When the number should change
- High AOV or considered purchases (furniture, jewellery) — space the emails out further. A 48-hour window is too fast for a decision that takes people a week.
- Browse abandonment vs. cart abandonment — someone who looked but didn't add to cart needs a softer, single-email nudge, not the full three-email sequence.
- Low AOV, impulse-driven stores — you can often get away with two emails, sent closer together, since the decision window is short anyway.
The "right" number depends less on best practice and more on your average order value, your purchase cycle, and what's actually causing people to abandon in the first place. Three is the right starting point for most stores — but it's a starting point, not a rule.
The takeaway
Start with three emails over 48 hours. Watch where people actually convert or drop off, then adjust — add space for a considered purchase, tighten it up for an impulse one. The flow should follow how your customers actually decide, not a template.