Purchasing Attachment Categories

Summary:

Kindly need to know how to check the difference between different PO attachement categories

Content (required):

Kindly need to know how to check the difference between different PO attachement categories,for example

when i attached more than one file in th PO (To approver,To supplier,Misc) to check the behavior for each one but only for

category type (To approver) i found the file appears to the approver but regarding to other categories i do not know how to check,for example

if i choose (to supplier)---How te attached file appears to supplier,

if i choose (To receiver)---when i received the PO i did not see any attachement for the PO--How te attached file appears to receiver,