The free Krom Automation plugin already includes two WooCommerce triggers and two actions.

Krom Automation Pro extends this significantly, adding 11 more triggers and 6 more actions that cover the full WooCommerce customer lifecycle- from account creation and first purchase through order management, stock alerts, product reviews, and payment failures.

No API key or configuration is required. Krom Automation detects WooCommerce automatically when the plugin is active.

Requirements #

• Krom Automation Pro installed and activated
• WooCommerce installed and active

What’s included in free vs Pro #

	Free	Pro (additional)
Triggers	Order Created, Order Completed	11 more triggers
Actions	Create Coupon, Update Order Status	6 more actions

This page covers only the Pro-exclusive triggers and actions. For the free WooCommerce triggers and actions, see the Free Triggers Reference and Free Actions Reference.

Pro triggers for WooCommerce #

1. Customer Created

Fires when a new WooCommerce customer account is created. This fires on account registration, not on guest checkout.

Data field	Description
customer_id	WooCommerce customer ID
customer_email	Customer email address
first_name	Customer first name
last_name	Customer last name
date_registered	Account registration date

Common use: Sending a welcome email specifically to new WooCommerce account holders, as distinct from the broader WordPress User Registered trigger.

2. Customer First Purchase

Fires when a customer completes their very first order. This trigger fires only once per customer — on the first completed order — and not on any subsequent purchases.

Data field	Description
customer_id	WooCommerce customer ID
customer_email	Customer email address
order_id	The order ID of the first purchase
order_total	The order total
Billing details	Billing address fields

Common use: Sending a first-purchase welcome email that’s different from the standard order confirmation, issuing a loyalty reward coupon for future purchases, or adding the customer to a first-time buyer Mailchimp audience.

3. Order Status Changed

Fires when a WooCommerce order status changes to any status. Use conditions on old_status and new_status to target specific transitions.

Data field	Description
order_id	Order ID
order_status	The new order status
old_status	The previous order status
customer_email	Customer email address
order_total	Order total
Billing and shipping address fields	Full address data

Common use: Notifying a customer when their order moves from processing to shipped, alerting the warehouse team when an order is ready for fulfilment, or triggering a custom workflow on any specific status transition you define.

Tip: Add conditions on both old_status and new_status to target precise transitions. For example, old_status equals processing and new_status equals completed fires only when an order moves from processing to completed, not on any other completion.

4. Order Cancelled

Fires when a WooCommerce order is cancelled.

Data field	Description
order_id	Order ID
customer_email	Customer email address
order_total	Order total
cancellation_reason	Cancellation reason (if recorded)

Common use: Notifying the customer with a cancellation confirmation, alerting the team, or triggering a win-back coupon offer.

5. Order Refunded

Fires when a WooCommerce order is refunded, whether fully or partially.

Data field	Description
order_id	Order ID
refund_amount	The amount refunded
customer_email	Customer email address
reason	Refund reason (if recorded)

Common use: Sending a refund confirmation to the customer, notifying the finance team, or logging refunds to a Google Sheet for reporting.

6. Order Payment Failed

Fires when a WooCommerce order payment fails at checkout.

Data field	Description
order_id	Order ID
customer_email	Customer email address
order_total	Order total
payment_method	The payment method that failed

Common use: Sending an immediate payment failure email with instructions to retry, alerting the team via Slack, or triggering an SMS via Twilio for high-value failed orders.

7. Coupon Used

Fires when a coupon code is applied to a WooCommerce order.

Data field	Description
order_id	Order ID
coupon_code	The coupon code that was used
discount_amount	The discount amount applied
customer_email	Customer email address

Common use: Tracking coupon usage, notifying an affiliate or referrer when their coupon is used, or logging coupon redemptions to Google Sheets.

8. Product Low Stock

Fires when a WooCommerce product’s stock quantity reaches the low stock threshold configured in WooCommerce settings.

Data field	Description
product_id	Product ID
product_name	Product name
stock_quantity	Current stock quantity
stock_threshold	The low stock threshold value

Common use: Notifying the warehouse or purchasing team via Slack, SMS (Twilio), or Telegram to reorder stock before it runs out.

9. Product Out of Stock

Fires when a WooCommerce product’s stock quantity reaches zero and the product goes out of stock.

Data field	Description
product_id	Product ID
product_name	Product name
product_sku	Product SKU

Common use: Immediate out-of-stock alert to the purchasing team, enabling a back-in-stock notification signup workflow, or updating a Google Sheet with current stock status.

10. Product Back in Stock

Fires when a WooCommerce product that was out of stock has its stock quantity updated to a positive number.

Data field	Description
product_id	Product ID
product_name	Product name
stock_quantity	The new stock quantity

Common use: Notifying customers who signed up for back-in-stock alerts, posting an announcement to social media channels, or alerting the sales team.

11. Review Submitted

Fires when an approved WooCommerce product review is submitted. This fires after the review is approved, not when it is first posted pending moderation.

Data field	Description
review_id	Review ID
product_id	Product ID
product_name	Product name
reviewer_name	Name of the reviewer
reviewer_email	Reviewer’s email address
rating	Star rating (1 to 5)
review_content	The review text

Common use: Thanking the reviewer with a follow-up email and a discount coupon as a reward, alerting the team when a low-rating review is submitted for quick response, or logging all reviews to a Google Sheet.

Pro actions for WooCommerce #

1. Add Order Meta

Adds or updates a custom metadata field on a WooCommerce order.

Field	Description
order_id	Order ID. Use {{order_id}} from the trigger.
meta_key	The meta key name (e.g., fulfillment_status, crm_contact_id).
meta_value	The value to store. Merge tags are supported.

2. Apply Coupon

Applies an existing coupon code to a WooCommerce order.

Field	Description
order_id	Order ID. Use {{order_id}} from the trigger.
coupon_code	The coupon code to apply.

3. Refund Order

Creates a refund for a WooCommerce order programmatically.

Field	Description
order_id	Order ID.
amount	The refund amount.
reason	The refund reason (stored on the order).

4. Send Invoice Email

Sends the WooCommerce invoice or payment request email to the customer for a specific order.

Field	Description
order_id	Order ID. Use {{order_id}} from the trigger.

5. Send Order Note

Adds a note to a WooCommerce order, with the option to notify the customer by email.

Field	Description
order_id	Order ID.
note	The note text. Merge tags are supported.
notify_customer	Toggle. When enabled, WooCommerce sends the note to the customer as an email notification.

6. Update Product Stock

Updates the stock quantity or stock status of a WooCommerce product.

Field	Description
product_id	Product ID.
stock_quantity	The new stock quantity to set.
stock_status	The new stock status: instock, outofstock, or onbackorder.

How to Set up a WooCommerce Pro workflow with Krom Automation #

1. Go to Krom Automation > Workflows and click Add New Workflow.
2. Click Add Trigger and select the relevant WooCommerce trigger from the WooCommerce category.
3. For triggers like Order Status Changed, add a Condition node with old_status and new_status fields to target the specific transition you want.
4. Add your actions. Use {{order_id}}, {{customer_email}}, {{customer.first_name}}, and other WooCommerce merge tags in action fields.
5. Simulate the workflow, then activate it.

Screenshot: Order Payment Failed trigger on the canvas connected to a Send Email action and a Slack Send Message action.

Screenshot: Order Status Changed trigger with a condition node below it showing old_status and new_status filters.

Real-world automation examples #

First-purchase welcome series

Trigger: Customer First Purchase Action 1: Send Email (branded welcome email with a first-purchase thank-you message) Action 2 (3-day delay): Send Email (product tips and how-to guide) Action 3 (7-day delay): Create WooCommerce Coupon and Send Email (loyalty reward coupon)

Payment failure recovery

Trigger: Order Payment Failed Action 1: Send Email to {{customer_email}} with payment retry instructions Action 2: Twilio Send SMS to {{customer.phone}} with a brief payment failure alert

High-value order alert to team

Trigger: Order Status Changed (condition: new_status equals processing, order_total greater than 500) Action: Slack Send Rich Message to #orders with the order ID, customer name, and total

Low stock warehouse alert

Trigger: Product Low Stock Action 1: Slack Send Message to #warehouse with {{product_name}} and {{stock_quantity}} Action 2: Telegram Send Message to the purchasing team chat with the same details

Review reward coupon

Trigger: Review Submitted (condition: rating greater than 3) Action 1: Create WooCommerce Coupon with a 10% discount code Action 2: Send Email to {{reviewer_email}} thanking them and delivering the coupon code

Refund confirmation and logging

Trigger: Order Refunded Action 1: Send Email to {{customer_email}} confirming the refund amount Action 2: Google Sheets Append Row logging the order ID, refund amount, reason, and date

Krom Automation Pre-built templates for WooCommerce #

Install these from Krom Automation > Templates:

Template	What it does
abandoned-cart-recovery	Multi-email abandoned cart recovery sequence
back-in-stock-notify	Notify customers when a product comes back in stock
first-purchase-welcome	Welcome email series on a customer’s first order
high-value-order-alert	Team alert when an order exceeds a threshold
low-stock-alert	Notify admin via SMS or Slack on low stock
multi-stage-abandoned-cart	3-stage abandoned cart recovery with delay nodes
new-wc-customer-welcome	Welcome flow for new WooCommerce customer accounts
order-cancelled-notification	Customer and team notification on cancellation
payment-failed-recovery	Payment recovery email with retry instructions
product-review-request	Review request email 7 days after order completion
refund-confirmation	Refund confirmation email and Slack alert
review-reward	Coupon reward after a customer submits a review
vip-customer-recognition	Recognise and reward VIP customers by lifetime value

Troubleshooting #

Pro WooCommerce triggers aren’t appearing in the trigger list. Confirm Krom Automation Pro is installed, active, and licensed. Then confirm WooCommerce is installed and active. Both must be present for Pro WooCommerce triggers to appear.

The Customer First Purchase trigger is firing on repeat orders. This trigger is designed to fire only on the first completed order per customer. If it’s firing multiple times for the same customer, check whether the customer has multiple accounts or whether the order used guest checkout on previous orders. Guest orders don’t count toward the “first purchase” check — only registered customer orders do.

Order Status Changed is firing too broadly. Add conditions on both old_status and new_status to narrow the trigger to the exact status transition you intend.