Communicate in one page
Objective, period, exactly what is measured, the slab table, the benefit, the claim process, the claim window, and one worked example using realistic numbers. Brief the field team before dealers hear anything, and test comprehension by asking a dealer to calculate their own benefit from the sheet. If they cannot, the scheme will not change behaviour regardless of how generous it is.
Publish running statements
During the scheme, dealers should be able to see where they stand at any point, calculated from the same records you will use to settle. This does two things: it removes the end of period dispute entirely, and it maintains the motivational effect throughout the period rather than only at the start and the finish.
Settle quickly
A short claim window and prompt settlement. Delay converts a goodwill exercise into a grievance, and channel relationships in most industries are long, remembered and discussed between dealers. The reputational cost of slow settlement is paid on every subsequent scheme.