Send reorder reminders

Remind each customer to reorder just before they run out, with timing worked out from how fast your own customers use each product, and see how many of those reminders turn into orders.

Key Takeaways

  1. A reorder reminder, also called a replenishment email, works when it arrives a few days before the customer runs out. Earlier and they ignore it. Later and they've already bought a replacement somewhere else.
  2. Kite works out when each product runs out from your own order history: how long repeat customers usually wait before buying the same product again. It then adjusts for each customer's own pace and for how much they bought.
  3. The email itself should be short. It names the product they bought, says it's probably running low, and links straight back to it. Kite saves discounts for the customers who need a nudge.
  4. Kite reads your orders in Shopify or WooCommerce on a daily schedule, finds the customers who are due, and sends their reminders from your Kite team address or through Mailchimp.
  5. Kite measures the program by reorders, not opens, and moves each product's timing earlier or later based on when customers actually bought again.
On this page

How do reorder reminders work?

If you sell something that runs out, such as coffee, dog food, vitamins, contact lenses, or skincare, your best customers are the ones who buy it again. Most of them intend to. Then the bag runs empty on a Tuesday, they're at the grocery store anyway, and they grab whatever is on the shelf. You didn't lose them to a better product. You lost them to timing.

A reorder reminder fixes that by reaching the customer right before they run out, while buying from you again is still the easiest choice. Done well, it's one of the most welcome emails a store sends, because it's useful. Setting it up takes four pieces of work:

  • Work out how long each product lasts.
  • Find the customers who are about to run out, every day, without emailing the ones who already reordered.
  • Write a short reminder that makes reordering take one click.
  • Check which reminders turned into orders and adjust the timing.

The hard part is the first one. Most stores guess a number, such as 30 days, and apply it to every product and every customer. That guess is wrong for the customer who bought two bags instead of one, and for the product your customers actually finish in three weeks. The right timing is already sitting in your order history, but reading it takes more time than a small team has. AI is well suited to this work because it can read every order, find the pattern for each product and each customer, and then keep checking every day.

Kite is an AI marketer. It researches your business, builds a growth strategy, and ships the work that brings you new customers. Here's how it sends reorder reminders.

How Kite sends reorder reminders

Kite starts with your orders. It reads your purchase history in Shopify or WooCommerce, works out how long each consumable product lasts your customers, and proposes the reminder timing for each one. It also checks your knowledge base, where it keeps what it learned about your products, customers, and brand voice during onboarding, so it knows which products are refills and which are one-time purchases.

Once you approve the timing and the emails, Kite runs the program on a schedule. Every day it looks for customers who are about to run out, leaves out anyone who already reordered, and sends their reminders. Afterward it reads your orders again to see who bought, and it uses that to tighten the timing product by product.

  1. Work out when each product runs out
  2. When should you remind customers to reorder?
  3. What should a reorder reminder email say?
  4. Send every reminder on time
  5. Measure reorders and adjust the timing

Work out when each product runs out

Kite learns how long a product lasts by looking at how long your repeat customers wait between buying it. If most customers who reorder your 12-pound bag of dog food do it between 26 and 32 days later, that bag lasts about four weeks. That number comes from what your customers actually did, so it's more reliable than a guess or a figure printed on the label.

Kite reads this for each product separately. A 30-day face serum and a 90-day supply of vitamins need very different reminders, even when they're sold by the same store. For a product that's too new to have many repeat orders, Kite starts from its size and how it's used, such as 60 capsules taken twice a day, and replaces that estimate with real data once enough customers have reordered.

Kite also adjusts the timing for each customer:

  • How much they bought. A customer who ordered two bags of dog food won't run out in four weeks, so their reminder comes about four weeks later than a single-bag customer's.
  • Their own pace. Once a customer has reordered a couple of times, Kite uses their own rhythm. If they reliably reorder every three weeks, their reminder comes earlier than the store average.
  • How they buy. A customer on a subscription already gets the product automatically, so Kite leaves them out of reminders.

Kite shows you the timing it proposes for each product, along with how many orders it's based on, so you can correct anything that looks off before the first reminder goes out.

When should you remind customers to reorder?

Send the reminder a few days before the customer would run out, plus the time it takes your order to arrive. If the dog food lasts 28 days and shipping takes four, the reminder should land around day 21 or 22. That gives the customer time to reorder and receive the new bag before the old one is empty.

Kite builds the timing that way. It takes the point where a product usually runs out, subtracts your typical delivery time, and adds a small buffer so the reminder lands while the customer still has some left. A reminder that arrives after the bag is empty is too late, because the customer has already bought a replacement at the store.

Kite usually plans one reminder and one follow-up. The follow-up goes out about a week later, only to customers who didn't reorder, and it's the last one. If a customer reorders before the reminder date, Kite drops them from that day's list, so nobody gets reminded to buy something they bought yesterday.

What should a reorder reminder email say?

A good reorder reminder is short and specific. It names the exact product the customer bought, says plainly that they're probably running low, and gives them one button that takes them straight back to it. The customer shouldn't have to search your store or remember which size they ordered.

Kite writes each reminder in your brand voice from what it knows about your products and customers. A typical first reminder for the dog food might have the subject line "Your dog's food is probably running low," open with the product name and size they bought last time, and link to that product. On Shopify, Kite can link to the exact variant they bought, such as the 12-pound bag of the salmon recipe.

The follow-up does a different job from the first email. It might mention that you offer a subscription, so the customer never has to think about reordering again, or answer a common question, such as how to switch flavors. Kite gives each email one job and one call to action, and every email includes a clear way to opt out.

Kite doesn't put a discount in every reminder. The customer already likes the product, so convenience is usually the reason they reorder. A discount makes sense for a first-time buyer who hasn't reordered yet, or in the follow-up for a customer who usually reorders but didn't. In Shopify, Kite can add unique codes to a discount you've already set up, so you can see exactly which reminders were redeemed.

Send every reminder on time

Kite runs reorder reminders as a scheduled job that checks your store every day. Each morning it reads the latest orders from Shopify or WooCommerce, works out which customers reach their reminder date that day, and removes anyone who already reordered, is on a subscription, or has unsubscribed.

Then it sends the day's reminders in one of two ways:

  • From your Kite team address. Every team has its own Kite email address, so Kite can send reminders without any other email tool. Each customer gets an email written for the product they bought.
  • Through Mailchimp. If your customers already hear from you through Mailchimp, Kite adds or updates each due customer in your audience and tags them, for example "Reorder due: dog food." From there it sends the campaign to that group, or it starts a Mailchimp Customer Journey for each customer when your journey begins with an API trigger.

In Shopify, Kite can also tag customers so the group stays visible in your store and in any other app that reads Shopify tags.

At first, Kite brings you each day's list and emails to approve with a reply or the Approve button, in the Kite web app or in Slack. Once you trust the timing and the copy, you can let Kite send the reminders on its own.

Measure reorders and adjust the timing

Kite measures reorder reminders by how many reminded customers bought again, and how soon. Opens show whether the subject line worked. Orders show whether the program did.

Kite reads your Shopify or WooCommerce orders to see which reminded customers reordered and how many days after the reminder they did it. If you send through Mailchimp with your store connected, it also reads the orders and revenue each campaign brought in. When a reminder carried a unique code, Kite can see exactly which codes were used.

The timing of those reorders tells Kite whether to move a product's reminder. If many customers reorder a few days before their reminder arrives, the reminder is late, and Kite moves it earlier. If customers who get the reminder wait two weeks before buying, it's early, and Kite moves it later. Kite brings you these changes with the numbers behind them, and it records what it learns in your knowledge base so each product's timing keeps improving.

What you get

A reorder timing for each product

How long each consumable lasts your customers, based on your own repeat orders, and when its reminder should go out.

A reminder and a follow-up for each product

Short emails in your brand voice that name what the customer bought and link straight back to it.

A daily reminder program

A scheduled job that finds the customers who are due each day, leaves out anyone who already reordered, and sends their reminders.

A results report

How many reminded customers reordered, how long they took, which products are reminded too early or too late, and what Kite recommends changing.

How to get started

Tell Kite which products you want reminders for, or simply ask, "Set up reorder reminders for our refills." Kite reads your order history, proposes how long each product lasts and when its reminder should go out, and drafts the emails. You adjust or approve the plan, and then Kite sets up the daily schedule.

To do this work, Kite needs to read your orders, so connect Shopify or WooCommerce. Kite can send reminders from your own Kite team address with no other setup. If your customers already get email from you through Mailchimp, connect it, and Kite sends the reminders there instead.

Kite asks for your approval before it sends an email. You can work with Kite in the Kite web app or in Slack.

Integrations used to send reorder reminders

Your store tells Kite who bought what and when, and your email tool is where the reminders go out. Kite does the timing, the writing, and the daily checking itself.

Common questions

How do I increase repeat purchases for a consumable product?

Make reordering the easiest choice at the moment the customer runs out. A well-timed reorder reminder does most of that work, and a subscription option does the rest for customers who want it. After that, the biggest lever is the first reorder. A customer who buys a second time is far more likely to keep buying, so Kite pays particular attention to first-time buyers and can give them a reason to reorder, such as a small offer on their second bag.

What's the difference between a reorder reminder and a win-back email?

A reorder reminder goes out before the customer runs out, while they're still a regular customer. A win-back email goes out after they've gone well past their usual reorder time and probably found something else. Reminders keep customers from lapsing, and win-back campaigns bring back the ones who already did. Kite handles the second job in its guide to winning back lapsed customers.

Should I send reorder reminders to subscription customers?

No. A subscriber's next order is already on its way, so a reminder to reorder is confusing. Kite leaves subscribers out of the reminder list. A reminder to one-time buyers is also a good place to mention the subscription, because people who reorder the same product every month are the customers most likely to want one.

Can I send reorder reminders if I don't use an email marketing tool?

Yes. Every Kite team has its own email address, and Kite can send each reminder from it, so all you need to connect is your store. If you already send marketing email through Mailchimp, it's usually better to send the reminders there too, because that's where your customers' email preferences and unsubscribes live.

Questions this page answers

  • How do I send reorder reminders to customers with AI?
  • Can an AI marketing agent write reorder reminders timed to how fast customers use the product?
  • How do I set up replenishment emails?
  • When should I remind customers to reorder?
  • How do I increase repeat purchases for a consumable product?
  • What should a reorder reminder email say?

About the author

Devon Wells leads product marketing at Kite, the AI marketer. He spent a decade marketing industrial AI, from self-driving trucks to computer vision, but now Kite handles most of the work itself.

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