Facebook Purchase Pixel Implementation

I am trying to install a facebook purchase pixel on my site and we currently do not have a “thank you for your order page” or and order confirmation page – the last page people land on is the order status – however when I try to install it there i get an error from facebook – can you please tell me how to install it correctly on the order status page? or if I need to create a thank you for your order page i am not seeing how to do it based off of the other forum help threads i have read as we do not have an option for an order confirmation page in our backend. thanks!