How to Set default notes/terms for purchase order in web?

To set default notes and terms in purchase order, please follow the path bellow:

Step 1: Sales>> Invoices>> Document settings>> Scroll down a bit

Step 2 : Click on add notes and terms>> Notes/Terms>> Select purchase order from dropdown

Step 3 : Click on new purchase order terms >> Enter required notes/terms>> Save

Step 4 : Enable default option>> Save