I remember once seeing the inbox of someone working as a sales-ledger clerk. It was full of messages with the subject "accounts query", or a small variation of that. The ones with subjects like "query for account ACME-37" were from technical staff.
Similarly if I ask "when do you need those figures?" and I get the answer "next Wednesday", it isn't when I'm talking to programmers that I feel the need to follow up with "Is that when you want me to give them to you, or when you're going to be making the presentation that includes them?".