The Klaviyo win-back flow that reactivates lapsed Shopify customers

Get the timing right first

Most win-back flows underperform because they fire at an arbitrary 90 days. Instead, find your median gap between a customer's first and second order in Shopify, then set the flow to trigger at roughly 1.5 times that gap. If your repeat buyers typically come back at 60 days, a customer is meaningfully lapsed at 90 — not at 30, and not at 180.

Split by category if your catalogue mixes consumables and hard goods. A reef store's salt-and-additives buyer lapses in weeks; someone who bought a light fixture won't buy another for years, so their win-back should sell consumables, not another fixture.

Building the flow in Klaviyo

1. Create a segment: has placed an order at least once, and has not placed an order in the last X days (your 1.5x number).
2. Use that segment as the flow trigger so customers enter as soon as they lapse.
3. Add a flow filter: has not placed an order since starting this flow, so a purchase pulls them out immediately.
4. Add a conditional split on lifetime value — high-value customers get a personal, plain-text style email instead of the templated version.
5. Exclude anyone currently in your sunset flow to avoid double-messaging unengaged profiles.

The four-email structure

Discount rules that protect margin

• Never discount in email one — you'll pay to reactivate people who were coming back anyway.
• Prefer free freight over percentage off. In Australia, shipping is the objection more often than price.
• Cap the offer to the category they previously bought so you're not discounting your best-margin lines.
• Time-box it to 72 hours and honour the expiry, or the next win-back cycle gets ignored.
• Exclude wholesale and trade profiles from the flow entirely.

Niche angles that actually work

• Reef & aquarium: tie the return to the tank's life stage — 'your tank is about six months in, here's what usually needs replacing'. It reads as expertise, not marketing.
• Outdoor, camping & 4WD: re-enter buyers ahead of the touring and school-holiday seasons rather than on a fixed delay. Seasonality beats recency in this niche.
• Specialty pets & animals: anchor to consumption cycles — feed, bedding, supplements — and let the flow estimate when they'd realistically run out.
• All niches: reference the specific product they bought. A generic 'we miss you' from a specialist store undermines the specialism.

Measuring it honestly

Judge the flow on reactivated customers and their subsequent second order, not on the revenue Klaviyo attributes to the first click. Check the 60-day repeat rate of people who came back through win-back against those who returned on their own — if it's similar, your timing and offer are healthy. If reactivated customers never buy again, the discount is doing the work and the flow needs a stronger reason to return.

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