I think I have found a small bug. When trying to “Attach an existing file that you have already uploaded to your Document Manager.” using the chain link in Purchase View
It only offers me files saved in the Invoices folder in Document Manager and this should be the Receipts folder for this page. It should default to Receipts in this case but would there be a case for allowing the option to select another folder as there may be a relevant file there and it would save duplication.
Not a widely used feature I am sure.