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Modifier rules: required, limited, or any

The three selection rules behind every modifier group, plus defaults, pricing deltas, and per-option stock.

Updated July 4, 2026

Every modifier group answers one question: how many options must (or may) the customer pick? The builder gives you three rules:

Required — pick exactly one. Spice level, size of rice, salad dressing. The customer can't check out without choosing.
Limited — pick up to N. "Choose up to 3 toppings."
Any — pick as many as they like. Extras and add-ons.

The details that matter

Defaults — pre-select the normal choice so the fast path is one tap. Customers can change it.
Price deltas — each option can add to the price, be free, or even *reduce* it (a negative delta covers "no protein" discounts).
Per-option stock — out of one topping? Mark that option out of stock without touching the rest of the group.
Group visibility — disable a whole group to hide it from ordering temporarily.

Frequently asked questions

Practical answers about modifier rules in KitchenRush.

How do Required, Limited, and Any modifier rules differ?

Required — pick exactly one. Spice level, size of rice, salad dressing. The customer can't check out without choosing.

Limited — pick up to N. "Choose up to 3 toppings."

Any — pick as many as they like. Extras and add-ons.

Can an individual topping have its own price and availability?

Price deltas — each option can add to the price, be free, or even reduce it (a negative delta covers "no protein" discounts).

Per-option stock — out of one topping? Mark that option out of stock without touching the rest of the group.