Acquiring a new customer is expensive. Keeping them is not. The best time to sell to someone is 30-60 days after their last purchase — they know your brand, they have received the product, and if they liked it, they are open to buying again. A well-timed re-engagement campaign capitalizes on that window before it closes.

Why 30-60 days is the sweet spot

Too early and the customer has not even received their order yet. Too late and they have moved on — your brand has faded from memory. The 30-60 day range works because:

  • The product has arrived and been used. The customer has formed an opinion. If it is positive, they are receptive to more.
  • Brand familiarity is still high. They remember who you are, what you sell, and what the experience was like.
  • They have not been re-acquired by a competitor yet. Wait 90+ days and another brand may have filled the gap.

This is fundamentally different from acquisition. You are not winning over a stranger — this customer just bought from you, so the brand is fresh in their mind. They simply have not had a reason to come back yet. The job is not to earn your way in; it is to give them that reason while you are still on their mind. That changes what you need to offer.

Re-engagement is not acquisition. You do not need deep discounts to get attention from someone who already knows and likes your brand. Moderate offers with the right products do the work.

Setting up the customer group

Create a customer group that targets buyers from 30-60 days ago. The exact window depends on your product category — a consumable (coffee, skincare) might warrant a 20-30 day window, while durable goods (furniture, electronics) might stretch to 45-90 days.

Recency is often the most useful filter here — sometimes more so than total spend. A customer who bought a month ago is usually warmer than one who spent a lot but has not been back in half a year, simply because you are still fresh in their mind. Spend tells you who values you; recency tends to tell you who is ready to hear from you right now.

Point the campaign at the right products

This is where re-engagement campaigns differ from standard promotions. Rather than re-running the same broad sale, you choose the collection that feeds the campaign — so you can steer it toward products in the same general interest area as what these customers tend to buy, instead of your whole catalog.

Randio does not analyze each person's order to hand-pick complements for them; what it does is randomize a personalized selection from the pool you point it at. So the curation is in your collection choice. Aim it at an interest area, and every customer in the group gets their own varied slice of it. For example:

  • A group that buys coffee gear? Feed the campaign a collection of beans, filters, mugs, and accessories.
  • A group that buys running shoes? Feed it socks, belts, apparel, and care products.
  • A group that buys outerwear? Feed it scarves, gloves, and seasonal add-ons.

It is not per-person complement matching — it is you choosing a relevant pool, and Randio personalizing the selection within it.

Build your strategy around a collection that contains products complementary to your best sellers. If your store is large enough, create multiple re-engagement strategies for different product categories.

Randio Tip

Create a "Pairs Well With" collection in Shopify and use it as the product pool for your re-engagement strategy. Update this collection monthly as your catalog evolves. This gives Randio a curated set to draw from — better than pointing it at your entire store.

Moderate discounts work here

Re-engagement campaigns can often run shallower than your usual offers, because this customer already knows your brand — they do not need to be convinced you exist. The personalized catalog does most of the heavy lifting: it reminds them, shows them something relevant, and the discount just removes the last bit of friction. Where exactly to land depends on how your store already discounts; a range that feels meaningful next to your baseline is the goal, not a fixed number.

How much room you have here depends on your base. If you have leaned on broad sales for a while, your customers may be conditioned to a certain depth, and a shallow offer can read as nothing at all — you may need to start closer to what they expect and ease down over time. If you have kept discounts measured, even a modest offer to a warm buyer can feel generous. Either way, the existing relationship usually buys you some room to discount less than you would for someone with no history — and that is margin you keep.

Monthly frequency on autopilot

The beauty of re-engagement campaigns is that they are evergreen. New customers flow into the 30-60 day window every month. Set up a monthly campaign frequency that targets this rolling window and you have a hands-off system that continuously converts one-time buyers into repeat customers.

Automatic scheduling can handle this entirely. Set the rules once — customer group, strategy, duration, frequency — and the campaigns run themselves on your schedule.

There is also a reason to consider showing up a little more often than a customer would naturally buy. Most repeat purchases happen on the customer's timeline, not yours — a need surfaces, and whoever is already on their radar in that moment tends to get the order. Reaching out somewhat more frequently than their typical buying cycle keeps you in that field of view, so when the pull to buy does come, you are already there. Over time, a present, relevant offer can nudge the next purchase a little earlier than it would have happened on its own — gently pulling the repeat cycle in rather than just waiting it out. The line to watch is the usual one: stay present without tipping into fatigue, which means leaning on lighter offers and fresh selections rather than constant deep discounts.

Re-engagement is not a one-time campaign. It is a system. Set up a monthly schedule and you are continuously converting first-time buyers into repeat customers without manual effort.

What the customer experiences

From the customer's perspective, they receive an email 30-45 days after their purchase with a subject line like "New picks based on your style" or "We thought you might like these." They open it to find a short, personalized catalog drawn from a collection you chose for this group — relevant to their interests, each item at its own discount.

This is not a generic "we miss you" email. There is no desperation in the framing. It feels like a recommendation from a brand that remembers them and has good taste. The squeeze page link in the email takes them straight to their personalized catalog.

If they do not click the email but visit your store on their own, the theme block catches them anyway. Either way, they see deals curated for them. Either way, you have re-engaged a customer who might have drifted away.

Measuring success

Track two metrics for re-engagement campaigns:

  1. Conversion rate. Re-engagement campaigns should convert higher than acquisition campaigns because the audience is warmer. If they do not, your product selection or timing is off.
  2. Repeat purchase rate. Over time, measure what percentage of first-time buyers come back within 90 days. That number should climb as you refine your re-engagement strategy.

A good re-engagement campaign pays for itself many times over. The credit cost is minimal (your 30-60 day buyer pool is usually a fraction of your full list), the discounts are moderate, and the lifetime value of a repeat customer dwarfs the margin you gave up on one order.