WooCommerce show custom column

Question

I want to show a additional column in the backend of WooCommerce (in Orders overview). The column should contain a custom field, which i have defined (delivery date).

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Answer 1

The following works for WooCommerce 2.6.2. You should look into two new hooks:

• woocommerce_admin_order_item_headers, invoked once when orders table header is generated
• woocommerce_admin_order_item_values, invoked once per every item inside the order

1. Define columns headers

add_filter('woocommerce_admin_order_item_headers', 'so13683162_headers');
function so13683162_headers($order) {
    echo "FIELD1";
}

2. Populate values in rows

add_filter('woocommerce_admin_order_item_values', 'so13683162_values');
function so13683162_values($product) {
    if (isset($product -> id)) {
        $attrs = get_post_meta($product -> id, "_product_attributes", true);
        echo "" . $attrs["FIELD1"]["value"] . "";
    }
}