Disable Attachment

How to prevent, Documents attached in PO, should not be editable/deleted by any user other than the PO Buyer.

Aren’t the attached documents merely links to documents ? Make sure the saved document is in a server folder where you can apply rights to the folder: Read only to all users groups and read/write to the buyers group?

Mind you, they could still maybe do a save/as and edit… but at least it will not be the “official” document.