Packed before the next order lands
The first order is already packed when the customer orders again. Now it's two parcels, two labels and twice the packing time — to the same doorstep.
Early access A Shopify app for combined shipping
Your original orders stay as they are, and nothing is ever refunded or cancelled. Kombi holds the first order until the next one arrives, then copies the tracking from your label to both.
5 free merges every monthUnlimited merges, no per-merge fees
The problem
When a customer orders twice before you ship, the usual fixes either waste postage or replace their orders with a new one — and leave a mess in your admin.
The first order is already packed when the customer orders again. Now it's two parcels, two labels and twice the packing time — to the same doorstep.
Apps that create a new merged order leave the original orders for you to archive, tag or fulfill by hand. Forget one and it can look unshipped.
Merchants report in public App Store reviews that leftover originals kept inventory "Committed" and that Meta cancelled or refunded orders still marked unfulfilled.
Read the public reviews ↗Pasting one tracking number into several orders is tedious and easy to get wrong — and customers notice when their order shows no tracking.
How it works
Kombi works with the orders you already have and the label tools you already use.
Kombi spots unfulfilled orders from the same customer going to the same address and lets you know they can ship together.
Kombi places a fulfillment hold so the first order isn't packed and shipped on its own. On Unlimited, auto-merge does this for you. Undo is one click.
Buy the label as usual with Shopify Shipping, ShipStation or similar. Kombi copies that tracking number to the other orders. Nothing to type in.
Why Kombi
Some apps combine shipping by creating a new, merged order. Kombi keeps the originals and gives them one parcel and one tracking number.
Why it's safe
Kombi never edits, cancels or refunds an order and never touches payments. It doesn't even ask Shopify for permission to.
Your originals stay the source of truth for revenue, reports, Meta and other channel orders, and loyalty apps like Smile.
Kombi only places and releases its own fulfillment holds and fulfills orders with your tracking. Payments are never touched.
Kombi never asks for permission to edit orders, so it simply can't change order contents.
Until the shipment is created, undo releases the hold and your orders are back to normal.
Every merge, undo and tracking copy is written to an append-only log. Nothing is silently rewritten.
Addresses are compared using a keyed hash, access tokens are encrypted, and logs contain no customer personal data. GDPR webhooks supported.
Compare
There are two ways to combine orders on Shopify. Some apps create a new merged order; others, like Kombi, keep the originals and give them one shared tracking number. Here's what changes in your store with each — using Mergify as the cited example of a merged-order app.
| Question | Original orders (Kombi) | New merged order (e.g. Mergify) |
|---|---|---|
| Creates a new order? | No — originals only | Yes, a new merged order |
| What happens to the originals? | Each is fulfilled with the same tracking | You decide: archive, fulfill, tag or leave |
| Refunds, cancels or edits orders? | Never — no permission to edit orders | Creates a new order; undo deletes it |
| Auto-merge | $14.99 / month, unlimited merges | From $29.99 / month (150 merges) |
| Per-merge fees | None | $0.15–$0.50 per merge over plan |
| Free plan | 5 merges every month | 5 merges in total, then $0.50 each |
Pricing
Start free. When you need more than 5 merges a month, there's one paid plan.
Every safety feature, on real orders.
$0/ month
5 merges Monthly
For every store that ships repeat orders.
$14.99/ month
Unlimited merges
Billed through Shopify in USD every 30 daysCancel anytimeSee pricing details →
FAQ
No. Your original orders stay as they are. Kombi places a fulfillment hold on them so nothing ships separately, and when you buy a label for one of them, the same tracking number is added to every order in the group. There's no extra order to archive, tag or clean up.
No. Kombi never asks Shopify for permission to edit orders, so it can't refund, cancel or change an order. It only places and releases its own fulfillment holds and fulfills the orders with tracking.
When a customer orders again before you've shipped, Kombi notifies you. Review the group and click Merge (or let auto-merge do it on Unlimited), and Kombi holds the orders so the first one isn't packed and shipped on its own. Undo releases the hold.
No. Buy the label as you already do — with Shopify Shipping, ShipStation or a similar tool — for one order in the group. Kombi copies that tracking number to the other orders automatically, so every original order is fulfilled with tracking.
Yes. Because Kombi never creates, edits, cancels or refunds orders, your order count, revenue and reports stay as they were. Inventory isn't left stuck as "Committed" on a leftover order, and loyalty points from apps like Smile keep working off the original orders.
They stay intact. Kombi doesn't change the order itself, and every original order is marked fulfilled with real tracking — so channel orders (for example from Meta) are not left sitting unfulfilled.
Until the shipment is created, undo is one click: Kombi releases its hold and the orders go back to normal. Every action — merge, undo, tracking copied — is written to an append-only audit log you can review.
Not yet. Version 1 supports orders shipped from your own locations — for example when you buy labels with Shopify Shipping or ShipStation. Support for 3PLs and fulfillment services is planned for a later version.
No. Kombi doesn't send any emails to your customers. It works quietly in your Shopify admin.
No. Kombi tracks orders from the moment you install it onward. Older orders aren't backfilled.
One merge is one group of orders combined into a single shipment — whether that group has two orders or five. Detecting mergeable orders, reviewing them and undoing a merge before shipping don't count; you only use a merge when you merge a group.
Nothing breaks and you are never charged extra. Kombi keeps detecting orders that can ship together and your Orders page keeps working; you'll simply be asked to upgrade to Unlimited before you can merge more that month. There are no per-merge fees.
Yes. Unlimited comes with a 14-day free trial, and the Free plan includes 5 merges every month with no time limit. Billing runs through Shopify in USD every 30 days, and you can cancel anytime.
Install Kombi, merge your first orders today — nothing refunded, cancelled or created.
5 free merges every monthNo card required