Purchasing Attachment Categories

Summary

Who has access to these categories?

Content

Hi all,

I see there is no real documentation on who has access to see attachments based on the categories they have.

If someone could provide me with which roles have access to which category, that would be great.
Certain categories are pretty straight forward, yet I'd like to include them anyway.

My investigation based on a question that the Requester (Requisition) could not see an attachment when looking for it on the linked PO number. Attachment looked to have the 'FROM_SUPPLIER' category.
Where is the security setup that links these categories to certain roles?