How to ship one Amazon order in two boxes
Both parcels are confirmed against the same order, each with its own carrier, service and tracking number.
Checked against Amazon's Fulfilled by Merchant page on September 13, 2026.
Before you start
- Both labels bought and printed, with both tracking numbers to hand.
- The quantity going in each box, worked out before you start typing.
- Seller Central access to Manage Orders.
Steps
-
Open Manage Orders in Seller Central
Sign in to Seller Central and open Manage Orders, which is where Amazon tells sellers to "review it, confirm shipping, and provide tracking information".
You should see the orders that are not yet confirmed as shipped.
-
Open the order you are shipping
Find the order in the list and open it to confirm the shipment.
You should see the shipment confirmation, showing the order's items.
-
Record the first box
Give the date, carrier, service and tracking number for the first parcel, against the quantity that went in it.
-
Add the second package to the same order
Record a second package rather than overwriting the first, so the order carries two shipments.
You should see a second set of shipment details below the first.
-
Record the second box
Give the date, carrier, service and tracking number for the second parcel, against its own quantity.
-
Confirm the shipment
Submit the confirmation to Amazon.
You should see both tracking numbers recorded against the one order.
If it goes wrong
- Each box is validated on its own
Amazon checks "carrier name and tracking ID" per shipment, so a second parcel entered against the first parcel's service is a mismatch even though the order confirmed. Copy each set off its own label.
- The boxes went out on different days
The shipping date sits on each package, so enter the day each one was actually taken. A back-dated second parcel is the part that shows up later as a late delivery.
- One number, two boxes
A single tracking number pasted twice leaves one box untracked in Amazon's eyes. Buy a label per box, even when the carrier will move them together.
What happens next
Both numbers now feed Valid Tracking Rate, which Amazon requires above 95% over a rolling 30 days, and both get judged on their own scans. If you mistyped either one, Amazon's window is "within 24 hours of the order being shipped". Multi-box orders are also where Buy Shipping cover is most missed: A-to-z claim protection and SAFE-T reimbursement both require a label "purchase[d] through Amazon Buy Shipping", so on outside labels a lost second box is your claim with the carrier.
Two boxes, two labels, one print job
Split the order across parcels here, price USPS and UPS for each, and print both labels in one merged PDF. The confirmation lists both tracking numbers, which is the order you need them in when you record the two packages. For a day of multi-box orders, The Workbench, part of Pro, keeps the rows and the numbers together.
Related questions
Yes. Amazon's bulk shipping confirmation feed takes order-item-id and quantity per row, so one order id can carry several packages, each with its own carrier-code, ship-date and tracking-number.
You can confirm the part that has shipped, but the unconfirmed remainder stays an unconfirmed shipment. Amazon links unconfirmed shipments to "an increase in their late shipment rate (LSR) and an increase in automatically canceled orders".
No. Each package carries its own carrier, service and tracking number, so a heavy box can go one way and a small one another.