Hi @doolank,

This occurs natively already.  

If you add Document Text to the Supplier for Purchase Part - when you preview a copy of the Purchase Order, you should see that Document Text underneath the Purchase Order Line.  

@doolank as @astfarazt mentioned, this is already happening automatically. I guess you asked this question since maybe for you it doesn’t work. In this case, please make sure you are selecting an Output Type which is connected to the PO report.

When I add document text to supplier for purchase part, the text does not automatically show on PO when I preview.  Below is screen shot of how I am entering it in on the supplier for purchase part document text.

 Thansk!