Post Type admin custom column

https://rudrastyh.com/woocommerce/columns.html

add_filter( 'manage_edit-product_columns', 'add_custom_column' );
function add_custom_column( $columns ){
    $columns['artikulai'] = 'Artikulai';
    return $columns;
}

add_action( 'manage_posts_custom_column', 'populate_columns' );
function populate_columns( $column_name ){
    if( $column_name == 'artikulai' ) {
        echo '000';
    }
}