Every morning is a forecast decision. How much of each flavour to make depends on the temperature and the day of the week, and last year's figures for comparable days are the only guide worth having.
Batches carry dates and allergens. What was made, when and with which ingredients is a food safety record, and it is also what allows a withdrawal to affect one tub rather than the whole cabinet.
Staffing has to move within the day. Two people at eleven and five at three is normal in good weather, and a rota fixed a week ahead either wastes wages or produces a queue that walks away.
The event side keeps its own books. Carts, weddings and wholesale accounts have deposits, invoices and delivery dates that behave nothing like counter sales, and merging them hides which one is actually profitable.