Shopify: “Fulfillment failed” in Ship&co - error causes and how to handle it

When you create a label in Ship&co for a Shopify order, we push the tracking number back to Shopify and mark the order (or line items) as fulfilled. If Shopify rejects this update, Ship&co shows Fulfillment failed. Below are the most common causes and what to do next.

Common causes & solutions

1 ) The order is older than 60 days (Shopify limitation)

Shopify stops accepting fulfillment updates for orders that are older than ~60 days, and they are not “active” in Ship&co anymore. If you have many preorders / old orders, you may need to “reactivate” them in Ship&co before creating labels.

What to do

• In Shopify Admin > Orders, select the affected orders.
• Add a simple order note (any text) or add an order tag such as shipandcoscheduled. (You can bulk-edit notes or tags in the Shopify order list.)
• Back in Ship&co, refresh the order list (or open the order page) and try fulfillment again after label creation.

2 ) Items were edited in Ship&co (not in Shopify)

If you delete items or add items on the Ship&co order page manually, the order data no longer matches Shopify. Shopify will then reject fulfillment.

What to do

• Always edit items/quantities in Shopify (order page). That automatically syncs to Ship&co.
• After editing in Shopify, confirm the order shows updated in Ship&co, then create the label.

3 ) Item locations were changed in Shopify

If the item (or part of the order) was moved to a different Shopify location after the order synced to Ship&co, fulfillment can fail because the location no longer matches.

What to do when the error occurs

Fulfill in Shopify manually

If an order cannot be fulfilled by Ship&co, please manually add the tracking number to the Shopify order page to complete the fulfillment.

• Copy the tracking number on Ship&co.
• Open the order in Shopify > Fulfill items > paste the tracking number and select the shipping carrier > make sure to tick "Send a notification to the customer" if you want the shipping notification to be sent automatically > click "Fulfill items" to complete.