What is a replenishment email? A reminder for consumable products
How does a replenishment email work?
It is one of the email automation flows: a sequence sent automatically when a customer meets a condition. Here the condition is time since a purchase.
Three parts matter.
- The trigger. Days since the customer bought a product that runs out.
- The timing. The same guide estimates it per customer, from their own purchase cadence and the product's usual consumption cycle, rather than one interval for everyone1. We agree. A label saying "lasts a month" tells you little about how fast people actually get through it.
- The stop rule. The guide suppresses the reminder if the customer has already reordered, and skips products they sent back1.
Why do replenishment emails matter?
They sit where repeat purchase is most natural. The customer already wants the product. The email only needs to arrive before they buy it somewhere else.
They also feed the numbers that matter for retention: repeat purchase rate and LTV. The wider logic is in customer retention strategy ecommerce, and the flow in context in email marketing for ecommerce.
For ZFD: Our view is that a reorder reminder is judged on margin from reorders, not on opens or clicks.
Worked example
Easily confused with
Replenishment email vs Abandoned cart flow
Targets someone who started checkout and left. A replenishment email targets someone who already bought and may need more.
Replenishment email vs Win-back email
Aimed at customers who have stopped buying. A replenishment email aims at customers who are still in their normal buying cycle.
Replenishment email vs A discount email
A reminder does not need an offer. If you always attach one, you may be paying for reorders that would have happened.
FAQ
When should a replenishment email be sent?
Before the customer runs out, based on how long your own customers take to reorder. Product descriptions are a starting guess at best.
Is a reorder reminder the same as a replenishment flow?
Nearly. A reorder reminder is one email. A replenishment flow is the automated sequence that sends it, with its timing and stop rules.
Does it work for every product?
No. It suits products that get used up and bought again. For a sofa, it is noise.
Should a replenishment email include a discount?
Not by default. A discount costs margin on every reorder it touches, including the ones that would have happened anyway.
Let’s find what’s actually working.
Next step. Check whether reorders actually pay on margin with the Is your ROAS real? calculator.