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Email and customers · Lesson 5.6

Build a Win Back Campaign for Customers Who Went Quiet

Rafay Korai · 6 min read · 2026-11-04

Most small businesses have a list of people who bought once, or a few times, and then stopped. Nobody decided to leave. They got busy, forgot, or found something easier. A win back campaign is a short, planned set of messages to those people, with a clear reason to come back.

This guide takes you from zero to a working campaign in order. You do not need a big list or special software. You need your order records, an email tool you already use, and an afternoon. Lesson 5.6 walks you through it step by step: Win back customers who went quiet.

A win back campaign works best when you message only people who really went quiet, say something useful, make one small offer, and stop after three emails.

What a win back campaign is, and what it is not

It is a short email series sent to past customers who have not bought for longer than their usual gap between orders. Klaviyo's help centre describes it as a series of emails to customers who previously engaged with your brand but have not interacted for a certain period.

It is not a blast to your whole list, and it is not a way to wake up people who never bought. Those are different jobs. Keep this one narrow: people who paid you once and then went quiet.

Step by step

  1. Define "quiet" for your businessLook at how long your repeat customers usually wait between orders. Klaviyo suggests averaging the time between orders for customers with at least two purchases in the last two years, then setting your first delay a little longer than that. The lesson uses 90 days as a starting point. A coffee seller may need less. A furniture maker needs far more.
  2. Pull the listExport customers whose last order is older than your cutoff. Remove anyone who bought since, anyone who asked to stop emails, and anyone who is in the middle of a refund or complaint.
  3. Split by valueMailchimp suggests treating a high spending customer who went quiet differently from a one time shopper. Two groups is enough: repeat buyers and one time buyers.
  4. Write three emailsA light check in, a reminder with a small offer and an end date, and a last call. Both Klaviyo and Mailchimp describe a three email pattern. More than three tends to annoy people.
  5. Set the stop ruleAnyone who buys, clicks to unsubscribe or replies leaves the series right away. Do this before you press send.
  6. Send and waitSpace the emails a few days apart. Do not change anything for a week.
  7. Read the result and decideCount who bought, who unsubscribed and who did nothing. Then choose what to keep for next time.

Step 1 in detail: who counts as quiet

Mailchimp is blunt about this: there is no set number of days after which a customer is inactive, and it depends on how often your customers are expected to buy. Its own examples contrast a grocery brand flagging inactivity at 30 days with an electronics retailer waiting six months.

So do not copy a number from a blog post, including this one. Check your own data. If you cannot calculate the average gap, ask a simpler question: when would a happy customer have needed more by now? If the honest answer is "about two months ago", your cutoff is near two months.

Step 3 in detail: writing the three emails

Keep each one short and written as one person to one person.

Email one is a check in. Say you noticed it has been a while, mention one useful thing that is new, and ask nothing big. Mailchimp's guidance for this email is to focus on value or updates and hold off on discounts. Klaviyo takes a different view and suggests a small incentive in the first email. Both are workable. Pick based on your margins and how your customers behave.

Email two carries the offer. Remind them what you sent before, state the offer in one line, and give a real end date. Keep it small. A free delivery, a small percentage off or a free extra is enough for many shops.

Email three is the last call. Tell them this is the final note, link to the offer once more, and make the unsubscribe link easy to find. Klaviyo says it plainly: someone unsubscribing is better for you than someone ignoring your emails or marking them as spam.

You are emailing people who gave you their address, but that does not remove the rules. Check these before you send.

  • Opt out. Every marketing email needs a clear way to stop future emails and your physical postal address. Under CAN-SPAM you must honour an opt out within 10 business days.
  • One click unsubscribe. Gmail's guidelines say subscription messages should support one click unsubscribe and that requests should be honoured within 48 hours. Yahoo's sender page says the same two days.
  • Complaints. Both Gmail and Yahoo say to keep your spam rate below 0.3%. A win back list is exactly where complaints can creep up, because these people have stopped paying attention.
  • UK and similar rules. In the UK, the ICO says you cannot send marketing emails to individuals without consent, except to existing customers who bought something similar and were offered a simple opt out at collection and in every message. Rules differ by country, so if you are not sure, check your local regulator.

This is general information, not legal advice.

Step 7 in detail: reading the result

Count three things: people who bought, people who unsubscribed, and people who did nothing. Then ask what you would change.

Be careful with open rates. Apple's Mail Privacy Protection can download email content in the background whether or not the person reads it, so opens from Apple Mail users may be inflated. Purchases and replies are the numbers to trust. The measuring post in this series goes deeper: Measuring a win back campaign.

What to do with people who still do not respond

After the third email, stop. Move silent people to a "quiet" group and do not include them in your normal sends for a while. Mailchimp notes that win back campaigns also give you a clean way to remove unengaged contacts, which can help you stay in good standing with large email providers.

If you want a ready made set of messages, use the free template in this series.

Questions people ask

How many emails should a win back campaign have?

Three is the common pattern in both Klaviyo's and Mailchimp's guidance: a check in, a reminder with an offer, and a last call.

Do I have to offer a discount?

No. Mailchimp suggests holding the discount until the second email. Klaviyo suggests an incentive early. Test what suits your margins.

Can I use my whole email list?

Better not. Send to customers who stopped buying, not people who never did. Mixing them makes your results hard to read.

Is AI needed?

No, but it can help you pull the list, draft the three emails in your voice and summarise the result.

Where to go next

Build the list first, then the three emails, then the stop rule. If you want the whole process guided, with your own customer data, take Lesson 5.6, Win back customers who went quiet. It covers finding people who stopped buying, writing the note in your voice, sending a small offer to the right people only, and seeing who came back.