Coupon Code

Hi @anish12345,

You could use some custom code and add a new custom field where to input the user ID under Marketing > Coupons > Select Coupon > Usage restriction.

Follow this Stack Overflow question for more details:

https://stackoverflow.com/questions/61572121/add-restriction-to-woocommerce-coupons-by-allowed-user-id

As a side note, I would recommend using a plugin like Code Snippets by Code Snippets Pro to add custom PHP code into your site without directly accessing the functions.php file. Here is a link on how to use the Code Snippets plugin:

https://www.wpbeginner.com/plugins/how-to-easily-add-custom-code-in-wordpress-without-breaking-your-site/

Hope this helps!

Hi again,

It’s not working. Every login user account showing invalid coupon code.

This is actually working since I’ve tried it on one of my test sites. Did you enter the snippet for coupon validation?

These are the steps that you’ll have to follow in order for the coupon to work:

1. Download and install Code Snippets plugin: https://wordpress.org/plugins/code-snippets/
2. Add the following code to Code Snippets to create a new field to the usage restriction tab:

// Add new field - usage restriction tab
function action_woocommerce_coupon_options_usage_restriction( $coupon_get_id, $coupon ) {
    woocommerce_wp_text_input( array( 
        'id' => 'customer_user_id',  
        'label' => __( 'User ID restrictions', 'woocommerce' ),  
        'placeholder' => __( 'No restrictions', 'woocommerce' ),  
        'description' => __( 'List of allowed user IDs. Separate user IDs with commas.', 'woocommerce' ),  
        'desc_tip' => true,  
        'type' => 'text',  
    )); 
}
add_action( 'woocommerce_coupon_options_usage_restriction', 'action_woocommerce_coupon_options_usage_restriction', 10, 2 );

// Save
function action_woocommerce_coupon_options_save( $post_id, $coupon ) {
    // Isset
    if ( isset ( $_POST['customer_user_id'] ) ) {
        $coupon->update_meta_data( 'customer_user_id', sanitize_text_field( $_POST['customer_user_id'] ) );
        $coupon->save();
    }
}
add_action( 'woocommerce_coupon_options_save', 'action_woocommerce_coupon_options_save', 10, 2 );

3.Add a new snippet to Code Snippets for code validation and paste this code:

// Valid
function filter_woocommerce_coupon_is_valid( $is_valid, $coupon, $discount ) {
    // Get meta
    $customer_user_id = $coupon->get_meta( 'customer_user_id' );

    // NOT empty
    if ( ! empty( $customer_user_id ) ) {
        // Convert string to array
        $customer_user_id = explode( ', ', $customer_user_id );
    
        // Get current user id
        $user_id = get_current_user_id();
        
        if ( ! in_array( $user_id, $customer_user_id ) ) {
            $is_valid = false;
        }
    }
    
    return $is_valid;
}
add_filter( 'woocommerce_coupon_is_valid', 'filter_woocommerce_coupon_is_valid', 10, 3 );

4. Go to Marketing > Coupons and add a new coupon. Write the User ID under Usage restriction. Save the coupon. Use a plugin like https://wordpress.org/plugins/reveal-ids-for-wp-admin-25/ if you need a quick way to reveal IDs.

The coupon assigned to that specific User ID will only work for that user and not for other users.

Let me know if that helped you out.

• This reply was modified 4 years, 10 months ago by Mirko P..

Hi again,

It’s working now

Glad to know that it’s now working with the User ID. You can also restrict by Email address that can use a coupon. The system will verify against the customer’s billing email.

Go to Marketing > Coupons > Select Coupon > Usage restriction > Allowed emails.

Link to image: https://i.imgur.com/TeVQUCX.png

If you wish to filter by username that would imply further customization that it’s outside the support of scope we can offer on this forum.

If you require further assistance with that, you could hire a developer to help create that portion of the code. If you would like to investigate that possibility further, you could reach out to some of the official WooCommerce development partners via this link below:

https://woocommerce.com/customizations/

Hope this helps!