Replenishment Campaigns: The Reorder Reminder That Prints Money: Trinacle

Some products come back on their own schedule: tinctures, supplements, coffee, filters, coils, soap, pet food. The customer does not track the bottle; they run out, improvise, and buy whatever is in front of them. A replenishment campaign puts your store in front of them at exactly the moment the bottle empties, and it is the closest thing ecommerce has to a subscription without asking anyone to commit to one. Here is the system.

Why replenishment beats almost every other campaign

The intent already exists. This is not persuasion; it is timing. The customer needs the product again whether or not you email, and the only question is who they buy it from.
The audience is proven. Everyone in the segment bought the product at least once. No cold traffic, no convincing, no discount arms race.
It compounds. Every reorder cycle the reminder fires at builds a habit: buy from the store that remembers. Miss two cycles and the habit belongs to someone else.

The timing: match the product, not the calendar

Replenishment is only as good as the interval, and intervals differ by product:

Tinctures and supplements typically run a 30-day bottle, which is why the working reminder window sits around day 27 to 33 after the last order: it lands as the bottle empties, not after the customer already improvised.
Filters, coils and parts run on usage, not calendar: heavier users need the reminder sooner.
Coffee, soap, pet food sit somewhere between, and the honest interval comes from the store’s own reorder data, not a template.

The mechanical version: measure the median days-between-orders per product, set the reminder just before it, and adjust when the data disagrees. Customers who reorder at day 40 get nudged at day 35, not day 30. One interval per store is a guess; one per product is a system.

What the message looks like

Lead with the product, not the brand. “Running low on the 30ml tincture?” beats “We miss you” by every metric that exists.
One tap to reorder. The link lands on a pre-filled cart or the product page, not the homepage. Reorder friction is the entire enemy.
A real reason is optional; the timing is not. Subtle subscribers get a plain reminder. Discount-trained customers need a nudge. Test, but do not lead with price: the whole point of replenishment is that the customer was going to buy anyway, and leading with discounts trains the next cycle to wait for one.
Two reminders maximum. Day 28-ish, and a second at roughly day 40 if the first went unopened. Then the customer graduates to the winback track, which we covered in the winback guide.

The segments behind the reminder

Buyers by product category, so the tincture reminder never reaches the grinder customer. Category-level purchase history is the backbone; we covered the split in the email segments guide.
Consent split. Replenishment runs on both email and SMS, and each channel texts or mails only its own opted-in audience. SMS is the stronger nudge for time-sensitive reorders; email carries the fuller message.
Lapsed-replenishers as a separate track. A customer who used to reorder on cycle and stopped is not a replenishment case; that is a winback with a specific, honest hook (“your usual 30ml is restocked”).

Fairness check

Replenishment only works on products people actually finish. One-time-use or long-horizon purchases (glass pieces, furniture, a wedding dress) do not have cycles, and forcing a “reorder” cadence onto them just trains unsubscribes. And if the store cannot measure days-between-orders yet, start with the obvious consumables and one honest 30-day reminder; refine with data, not vibes. We covered the measurement habit in the LTV guide.

How Trinacle runs this for you

Replenishment is one of the always-on sweeps, not a monthly project:

Automated replenishment reminders on the customer’s actual cycle, on both email and SMS, with consent tracked per channel. See Trinacle email and Trinacle SMS.
Category segments built and maintained for you, synced from the store with consent. See customer intelligence.
Revenue attributed per campaign, so the replenishment line reports in dollars like everything else. See money tracking.
Human QA and your approval on the creative, always. See how it works.

Plans start at $315/mo, flat, no contracts.

The bottle empties on a schedule. Pick a plan and be there when it does.