Woocommerce Custom Colums from Custom Fields

woo-custom-columns.php

<?php
//Add custom columns to admin page
add_filter( 'manage_edit-product_columns', 'show_product_order', 15 );
function show_product_order($columns){
	$columns['COLUMN_NAME'] = __( 'LABEL'); //Add this for each new column and change LABEL and COLUMN_NAME
	return $columns;
}

//Get Custom Columns values from fields
function custom_columns( $column, $post_id ) {
	//Add this block for each column created above
	if ( $column == 'COLUMN_NAME' ) {
      echo get_post_meta( $post_id, 'CUSTOM_FIELD_NAME', true ); //Change CUSTOM_FIELD_NAME
  }
}
add_action( 'manage_product_posts_custom_column', 'custom_columns', 10, 2 );