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How to Implement Order Merging in PHP

M66 2025-09-25

How to Implement Order Merging in PHP

Order merging is a useful feature in modern ecommerce platforms, especially when customers purchase multiple items at once. By merging multiple orders into a single new order, it not only simplifies backend management but also enhances the shopping experience for customers. This article will guide you on how to implement order merging using PHP.

Steps to Implement Order Merging

Check Order Eligibility

Before merging orders, you must first check if they meet the criteria for merging. Generally, the following conditions should be met:

  • The orders come from the same customer.
  • The orders have the same shipping address.
  • The orders have not been shipped or processed yet.

Create a New Order

Once the merge conditions are met, you need to create a new order. The new order should include the following details:

  • Customer information
  • Shipping address
  • Total price (sum of all merged orders)

Update Order Status

After the orders are merged, mark the original orders as “merged” or “canceled” to prevent them from being processed or shipped again.

Add Order Items

Next, you need to add all items from the merged orders into the new order. Make sure to update the quantities to reflect the total number of items from all merged orders.

Adjust Inventory

After merging the orders, you need to adjust the inventory. Update the stock levels based on the quantity of items in the merged orders to prevent overselling or stock shortages.

Update Shipping Information

If the new order requires separate shipping, update the shipping details, including the shipping method and tracking information. If the merged orders have the same shipping method, you can retain the original shipping information.

Send Merge Confirmation

After the order merge is completed, send a confirmation email or notification to the customer, informing them that their orders have been successfully merged. Include the new order number and details of the merged orders.

Conclusion

By following these steps, you can easily implement order merging in PHP. This will not only simplify the order processing flow but also improve the customer shopping experience. Order merging helps reduce customer confusion and unnecessary duplication of orders, while also enabling better order and inventory management for ecommerce platforms.