Make your commissions truly motivating and transparent and avoid all the manual hazzle. Create a commission plan with no nonsense integration to relevant systems, so your sales reps immediately can experience the fruit of their efforts and be inclined to do more. By the end of the commission period an approval flow will assure the quality of the following payouts that is then automatically carried out.
No more discussion about why, how and when your sales reps will receive their commissions and no more manual work in a spreadsheet that is prone to errors. Take the next step in professionalizing and motivating your sales team.