Any tenant contact that pulls you or your team away from what you were doing. Phone call, text, walk-in, email, portal message — if it required a response, log it.
Right after it happens — takes 10 seconds. Do not wait until end of day. Details get lost and estimates go low.
Five days of honest logging gives you a real number — not a gut feeling. That number is the baseline everything else is measured against. Guess wrong, you fix the wrong thing.