Monthly commissions and payouts, without a spreadsheet
Commission was worked out by hand and paid by hand, and both were a source of argument every month. Not through bad faith: because the sale lived in one place and the calculation in another, and reconciling them was a job.
Now month-end is worked out on its own, broken down by person and by team, and payout is a flow: the promoter requests it, admin approves it, and there is a record of who approved what and when.
It is the least glamorous part of selling person to person and the one that burns most people out. A promoter who argues about their commission every month ends up selling for somebody else.