Where to start: approval limits
The key decision before rollout is the approval table: up to what amount, and for which product types, each management level approves purchases. Keep it simple — three or four levels are enough.
For frequent low-value items, set up period purchase agreements with fixed prices so each order doesn’t need a new RFQ. Keep multi-supplier RFQs for large, non-recurring purchases.
Announce supplier evaluation criteria from the start: on-time delivery, quality results and price competitiveness. Suppliers who know they are measured tend to perform better.
Make purchase requests mandatory for every department, even small purchases, but keep approval to a single step for low amounts. The goal is transparency, not slowing work down.
Before three-way matching goes live, define tolerances — for example, accept price differences up to one percent or quantity differences of one unit automatically. Without tolerances every tiny difference blocks payment and finance starts looking for ways around the system.
Finally, connect purchasing to the budget. When each request shows how much of the department’s budget remains, managers approve with context instead of in isolation, and overspending is visible before the order is placed rather than at month-end.