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Learn how to integrate a `bulk discount` system for specific product IDs in WooCommerce to enhance customer savings based on quantity purchased.
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Implementing a Bulk Discount for Specific Product IDs in WooCommerce

In the world of eCommerce, offering incentives to customers can be an effective way to boost sales and encourage larger purchases. One such incentive is a bulk discount, where customers receive a price reduction based on the quantity of a specific product they buy. In this post, we will explore how to implement a bulk discount for a specific product ID in WooCommerce.

Understanding the Requirement

Imagine you want to create a promotional pricing strategy for a specific product with the following conditions:

When purchasing 10 or more units: Apply a discount of $2 per unit.

When purchasing 20 or more units: Apply a discount of $3 per unit.

Sample Desired Output

To visualize this, consider the following examples:

For 10 units:

Original price = $73.00 each

Total without discount = $730.00

Discount = $20.00

Total after discount = $710.00

For 20 units:

Original price = $73.00 each

Total without discount = $1460.00

Discount = $60.00

Total after discount = $1400.00

However, users often encounter difficulties implementing such discounts, leading to critical errors when handling WooCommerce cart calculations. Below, we'll walk you through the steps to properly set up this discount mechanism.

Solution Breakdown

To implement this feature, we’ll use custom PHP code added to the functions.php file of your active child theme (or parent theme). Follow these steps:

Step 1: Define the Discount Logic

The following code snippet sets up a function that calculates the discounts based on the quantity of a specific product identified by its product ID (283 in our example).

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Hook the Function to WooCommerce

This function needs to be hooked into the WooCommerce process, specifically at the point just before the totals are calculated. Add the following line after the function definition:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Testing Your Discount Logic

Before deploying this code:

Make sure to back up your website, especially the functions.php file.

Test the functionality by adding various quantities of the specific product to the cart and checking that the discounts are applied correctly.

Troubleshooting Common Issues

If you experience critical errors while implementing this code:

Check Syntax Errors: Even a small typo can break the entire function. Make sure that you have correctly and consistently formatted your PHP code.

Review Hook Priority: Ensure that your action hook priority (9999) is set correctly to avoid conflicts with other cart calculations.

Conclusion

Implementing a bulk discount system for specific product IDs in WooCommerce can enhance your customers' shopping experience by incentivizing larger purchases. With the provided code snippet and steps, you can easily set up this feature and start enjoying the increased sales and customer satisfaction that come from it.

Feel free to reach out in the comments if you have any questions or need further assistance!