This article is mirrored from couponaffiliates.com.

By default, the Referred Orders table in the affiliate dashboard shows a fixed set of columns like order date, status, and commission.

If you’d like to display additional information – such as a custom field collected at checkout – you can do that with a small snippet of code added to your theme’s functions.php file or a site-specific plugin.

No core files need to be edited, and the change will survive plugin updates.

Version 7.8.0+ of Coupon Affiliates is required.

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How it works

You need two small code snippets:

1. Register your column – this tells the table what heading to show.
2. Provide the value – this tells the table what to display in that column for each order.

That’s it. Here’s a complete working example that adds a “Customer Note” column showing the note a customer left at checkout:

// Step 1 - Register the column heading
add_filter( 'wcusage_filter_referred_orders_custom_columns', function( $columns ) {
    $columns['customer_note'] = array(
        'label' => 'Customer Note',
    );
    return $columns;
}, 10, 1 );

// Step 2 - Display the value for each order row
add_filter( 'wcusage_filter_referred_orders_custom_column_value', function( $value, $column_key, $order ) {
    if ( 'customer_note' !== $column_key ) {
        return $value;
    }

    $note = $order->get_customer_note();

    return '' !== $note ? esc_html( $note ) : '—';
}, 10, 3 );

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Showing a custom checkout field instead

If you collected a custom field during checkout and saved it as order meta, swap out $order->get_customer_note() for $order->get_meta() and pass in your field’s meta key. For example, if your field is saved as _delivery_date:

// Step 1 - Register the column heading
add_filter( 'wcusage_filter_referred_orders_custom_columns', function( $columns ) {
    $columns['delivery_date'] = array(
        'label' => 'Delivery Date',
    );
    return $columns;
}, 10, 1 );

// Step 2 - Display the value for each order row
add_filter( 'wcusage_filter_referred_orders_custom_column_value', function( $value, $column_key, $order ) {
    if ( 'delivery_date' !== $column_key ) {
        return $value;
    }

    $date = $order->get_meta( '_delivery_date' );

    return '' !== $date ? esc_html( $date ) : '—';
}, 10, 3 );

Not sure what your field’s meta key is? You can usually find it by checking your checkout plugin’s settings, or by looking at the order details in WooCommerce > Orders using a plugin like WP Meta Inspector.

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Adding multiple columns at once

You can register as many columns as you like in a single snippet. Just add extra lines to Step 1, and handle each one in Step 2:

// Step 1 - Register multiple column headings
add_filter( 'wcusage_filter_referred_orders_custom_columns', function( $columns ) {
    $columns['delivery_date']  = array( 'label' => 'Delivery Date' );
    $columns['purchase_order'] = array( 'label' => 'Purchase Order #' );
    return $columns;
}, 10, 1 );

// Step 2 - Display the value for each column
add_filter( 'wcusage_filter_referred_orders_custom_column_value', function( $value, $column_key, $order ) {
    switch ( $column_key ) {
        case 'delivery_date':
            $v = $order->get_meta( '_delivery_date' );
            return $v ? esc_html( $v ) : '—';

        case 'purchase_order':
            $v = $order->get_meta( '_purchase_order_number' );
            return $v ? esc_html( $v ) : '—';
    }
    return $value;
}, 10, 3 );