How to Combine Orders on Shopify (3 Ways)

A customer places an order, then a second one ten minutes later because they forgot something. Now you have two orders, two shipping labels, and two fulfillments for one person. Shopify gives you no "combine orders" button - here is what actually works.

The short answer: Shopify cannot combine orders natively. You can rebuild both orders as a single draft order, edit one order and cancel the other, or use an order merging app like MergeIt that combines them in one click (or automatically) while keeping your reports accurate.

Why Shopify Can't Combine Orders Natively

An order in Shopify is an immutable record of a checkout: payment, taxes, discounts, and shipping were all calculated at that moment. Merging two of those records into one touches payments, refunds, taxes, and analytics at once - so Shopify simply doesn't offer it in the admin.

That leaves you with three practical options.

Option 1: Rebuild Both Orders as a Draft Order

Create a new draft order containing all items from both orders, mark it as paid, then cancel and refund the two originals.

How to do it:

1. In Shopify admin, go to Orders → Drafts → Create order
2. Add every line item from both original orders
3. Set shipping to a single rate and apply any discounts again
4. Mark the draft as paid (or send an invoice for the difference)
5. Cancel and refund both original orders

✅ Pros:

• Works on every Shopify plan, no app needed
• Full control over the final order

🚨 Cons:

• Slow - rebuilding items, discounts, and taxes by hand invites mistakes
• Two cancelled orders plus a manual order skew your sales reports
• Refunding and re-charging can cost you payment processing fees
• The customer gets confusing cancellation and refund emails

Option 2: Edit One Order, Cancel the Other

Shopify's native order editing lets you add items to an unfulfilled order. You can add the second order's items to the first order, then cancel the second one.

We cover order editing in depth in how to edit a Shopify order after it's placed.

✅ Pros:

• Stays closer to the original order than a draft rebuild
• Native feature, available on all plans

🚨 Cons:

• Still a cancelled order in your reports and a refund to process
• Easy to forget the extra shipping the customer paid on order two
• Manual work for every single merge - it doesn't scale

Option 3: Use an Order Merging App

An order merging app like MergeIt combines unfulfilled orders from the same customer into one order - in one click, or automatically based on rules you define.

How it works in MergeIt:

1. Install MergeIt from the Shopify App Store
2. Select the orders on the Shopify orders page (or in the app) and click merge - done
3. Optionally, set up a smart rule: for example, auto-merge orders from the same customer placed within 24 hours with the same shipping address
4. Optionally, get an email alert for each merge suggestion and confirm it yourself

Sales and tax data stays intact when orders are merged, so reports and analytics keep working. Every merge is recorded in a merge history, and most merges can be undone right from the app.

✅ Pros:

• One click instead of minutes of manual rebuilding
• Auto-merge rules handle repeat cases without you touching anything
• Reports, taxes, and analytics stay accurate
• Merge history with undo

🚨 Cons:

• Paid app (from $14.99/month with a 7-day free trial)

Which Method Should You Pick?

If double orders happen a few times a month or more, the manual methods quickly cost more in time and shipping than an app does. Combining orders also means shipping once instead of twice - see how much combined shipping saves.

🎯 Key Takeaways

• ✓ Shopify has no native combine or merge orders feature on any plan
• ✓ Draft orders and edit-and-cancel work for one-offs but skew reports and don't scale
• ✓ An order merging app combines orders in one click and keeps sales and tax data accurate
• ✓ Auto-merge rules catch double orders from the same customer without manual work