Forecast against actual
Before
Each site’s rota and stock order is a private guess, and nobody compares the guess with what the till actually took.
After
Sales, rota cost and order value sit in one weekly view per site, so the gap between the bet and the reality is visible while it can still be acted on.
Human checkpoint
Managers still write the rota and place the orders. The system shows the gap; it changes nothing on its own.