n8n connects Shopify, WooCommerce, shipping carriers, and communication
tools to automate every stage of an order’s lifecycle. When a customer
places an order, n8n triggers inventory adjustments, generates shipping
labels, sends confirmation emails, and posts a Slack notification—all
within seconds. This guide covers end‑to‑end workflow patterns for
lean e‑commerce operations.
[1]

How do you automatically process new orders from Shopify with n8n?

Use the Shopify Trigger node set to “New Order” to listen for all
incoming purchases. Each order’s JSON payload includes line items,
customer details, and payment status. A Set node extracts the required
fields, and subsequent nodes can update an external database or
trigger fulfillment actions based on the payment status.
[1]

For high‑volume stores, add an IF node to separate paid orders from
pending ones, routing paid orders to the fulfillment pipeline and
pending ones to a retry or notification loop. See
n8n IF & Switch branching
for conditional routing patterns.

How do you sync inventory between WooCommerce and an external warehouse?

Set up a WooCommerce node that fetches all products with their stock
quantities. A Set node maps the WooCommerce fields to the warehouse
API’s expected format, and an HTTP Request node pushes the updated
stock levels. Repeat on a schedule to keep inventory accurate across
both systems.
[2]

For near‑real‑time sync, use a Webhook trigger from WooCommerce’s
“Stock Updated” event and immediately propagate the change. This
pattern avoids overselling and is further explained in the
ETL pipelines guide.

How do you generate a shipping label and notify the warehouse?

After the order is paid, connect a ShipStation or Shippo node to
create a shipping label. Pass the order’s shipping address and
package weight from the Shopify node via a Set node. Once the label
is generated, a Slack node notifies the warehouse channel with the
tracking number and order ID.
[3]

For custom carriers, use the HTTP Request node to call their API and
attach the returned PDF label to an email. Handle API failures by
wrapping the label creation in an
error workflow with retry logic.

How do you send branded order confirmation and shipping emails?

After the order is created, use a Gmail or SMTP node to send the
customer a confirmation email. A Set node builds the email body with
the customer’s name, order number, line items, and a branded HTML
template. Once the shipping label is generated, trigger a second
email that includes the tracking link.
[4]

Use the “Send HTML” option in the email node and inject dynamic data
via expressions. For large newsletters or transactional campaigns,
pair this with the
marketing automation guide.

How do you notify the support team on Slack for high‑value orders?

After the order is processed, an IF node checks if the total exceeds
a threshold (e.g., $200). If true, a Slack node posts a rich message
to a #vip-orders channel containing the order ID, customer name, and
a direct link to the admin panel. This triggers a personalised
service follow‑up.
[5]

Customise the Slack message with a button to assign the task to a
support agent. For incident management, integrate PagerDuty as
described in the
DevOps alerting guide.

How do you automate return and refund processes with n8n?

Listen for a “Return Requested” event via a Shopify or WooCommerce
trigger. An HTTP Request node calls the refund API, and an IF node
checks if the returned item is restockable. A database node updates
inventory, while an email node sends the return confirmation and an
Airtable node logs the reason for analysis.
[1]

For partial refunds or exchanges, build a sub‑workflow with the
Execute Workflow node
that handles the complex logic and can be called from multiple return
sources. Log every return step to Google Sheets for monthly reporting.