when i fill out the fields on the Purchase order, there is also the option on “Payment Terms”, however i cannot see them on the PO, Delivery info is fine, this can see. Same problem also on the Sales Order
Purchase order is a document you send to your supplier to order goods or services. You don’t get to set payment terms. Your supplier gets to set them.
Also, purchase order doesn’t have a field called Payment Terms so I assume it must be a custom field you have created?
ok, so if this is a custom filed how can i make or what i need to do to get this when i print the document?
Custom fields are not appearing on the printed documents so far and not even appearing when you enter that group where here is a custom field (e.g adding ‘Zone’ as a custom field for customers wont show among the columns if you display customers). It very sad 
Manager will climb another professional step higher if it is able to show custom fields on the final printed document and among the columns