Configure Automatic Order Merging
Configure automatic order merging rules so related WooCommerce orders can be combined based on your store workflow.
Automatic merging helps when the same customer places multiple orders close together and your team wants to process them as one order.
Open Merging Automation
- Go to WooCommerce → Settings → Orders → Automation.
- Find the Merging section.
- Enable Automatically merge orders placed by the same customer.
- Set the Period of time.
- Save changes.
How Matching Works
The plugin compares the customer details strictly. Billing email must match, and billing name, phone, and address must match. If shipping details are different from billing, shipping details are also compared.
Which Order Becomes the Main Order
When multiple matching orders are found, the oldest order becomes the main order. Newer matching orders are merged into it.
What Happens to Merged Orders
The merged orders are moved to trash. The main order receives the combined items, shipping lines, fees, totals, and an order note listing the merged order IDs.
Recommended Time Window
Start with 15-30 minutes. A longer window may merge orders that the customer intended to keep separate.

For one-off corrections, use Merge Orders Manually instead of enabling automation immediately.
Continue from WooCommerce Advanced Order Actions documentation to the complete product workflow.
Evaluate product scope on the money page, use the pillar Guide for decisions and trade-offs, and return here for exact configuration.
Did this guide answer your question?
Still stuck?
Open a support request and include this article title, your plugin version, and what you already tried.
Open Support