Modifier rules: required, limited, or any
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.