Fulfillment mistakes | Updated 2026-05-15
How to fix the wrong quantity fulfilled in Shopify
What to do when the order says more shipped than actually left the warehouse.
Example: customer ordered 2 but only 1 shipped
A customer orders two units. The order is marked fulfilled for two, but the warehouse only shipped one. Now the order can look complete even though one unit still needs to go out.
Why this creates fulfillment confusion
The team may stop seeing the remaining unit as work to do. Support might promise the customer a replacement while the warehouse has no clear unfulfilled line to process.
What you should not do
Do not refund just to make the order easier to explain if the customer still wants the item. Do not rely only on a private spreadsheet note. Do not leave the order history vague.
How FulfillFlub helps correct the quantity
FulfillFlub is built to cancel the mistaken fulfillment, re-fulfill the quantity that actually shipped correctly, and leave the missing quantity unfulfilled so it can still be shipped through Shopify.
Checklist before correcting the order
Before changing anything, confirm the original order quantity, the fulfillment that was created, what physically shipped, and whether any inventory adjustment is needed.
- Check the packing record or warehouse note.
- Confirm which line item and variant were affected.
- Decide what still needs to ship.
- Document the correction in the order history.
Correct the quantity from the order page
A wrong quantity should end with a clear order, not a scattered support trail. FulfillFlub keeps the correction attached to the Shopify order.
Use FulfillFlub for Shopify fulfillment correction
FulfillFlub focuses on wrong-quantity corrections from the Shopify order page.