In this post, we will discuss Change the place of upsell section to the top in woocommerce. So first download the file functions.php from your web server theme folder. Open it and paste the below code.

// Upsell Related Products Display
add_action( 'init', 'move_upsells_after_related' );
function move_upsells_after_related( ) {
remove_action( 'woocommerce_single_product_summary', 'woocommerce_upsell_display', 15 );
add_action( 'woocommerce_single_product_summary', 'woocommerce_upsell_display', 11 );
}