ShipStation and Slack: Cancelled-Order Label Void Template

When an order is cancelled, this Spojit template voids its ShipStation label and posts a confirmation with the recovered postage to Slack so the parcel is pulled from dispatch before it ships.

What It Builds

A Webhook trigger receives the cancellation event from your store. A ShipStation Connector node looks up the matching shipment and voids its label, and a Slack Connector node posts a confirmation to your dispatch channel showing the order number and the postage that was recovered. The team sees the alert in time to pull the parcel from the pick line.

The Prompt

Paste this into Miraxa and it builds the workflow, connecting the tools for you:

Build a workflow that triggers on a webhook when an order is cancelled. Look up that order's shipment in ShipStation and void its shipping label, then post a message to the #dispatch Slack channel confirming the label was voided, including the order number, customer name, and the postage amount recovered. Tell the warehouse to pull the parcel from dispatch.

Connectors Used

Webhook trigger - fires on the cancellation event sent by your store or order system.
ShipStation - finds the shipment for the cancelled order and voids its label.
Slack - posts the void confirmation and recovered postage to your dispatch channel.

Customize It

Change #dispatch to whichever channel your warehouse watches, and adjust the message fields (add the tracking number, carrier, or warehouse location). You can also add a condition so only orders that have already shipped or printed a label trigger the void, keeping the channel quiet for orders cancelled before fulfillment.

Tips

Use the ShipStation node in Direct mode for the void so it runs the exact action with no AI cost.
Make sure your ShipStation credentials have permission to void labels, and confirm the carrier still allows a void within its time window.
If the label was already scanned by the carrier, the void may fail; route that case to a separate Slack alert so dispatch can intercept the parcel manually.