I would like to suggest that electronic invoices for amounts automatically posted to MLS finance be automatically sent to the unit through MLS. In my experience so far, I already have a number of automatically posted expenses that I don't know which category to assign for them. I have to wait for the stake president (in my case) to pass on a mailed invoice up to a month or so later or ask whoever made the order to recall what it was for.
This may already be planned since many other documents are now sent this way.