Display the order number on Thank you page

-- HikaShop version -- : 4.2.2
-- Joomla version -- : 3.9.14
-- PHP version -- : 7.1.33
-- Browser(s) name and version -- : Chrome

Hello. I would like to modify the paypalpro_thanks.php page so that it includes a line like:

Thank you for your order. Your order number is: xxxxxx. If you have any question about your order please do not hesitate to contact us.

I have tried using the object $this->order->order_number; but it will not work.

Please help.

Hi,

The variable $this->order is not initialized there.
You would need to add the code:
$this->order =& $order;
before the line:
return $this->showPage('thanks');
in the file paypalpro.php to be able to use $this->order in the paypalpro_thanks.php file.

That did the trick. Thank you Nicolas!