# Differences between rule Product limit vs Collection limit vs Order limit

## Product Limit – Limit per individual product

This rule applies **directly to a specific product**.\
You set the minimum or maximum quantity that customers can buy for that product alone.

Example:\
Product A → Max 2 units\
The customer cannot add more than 2 units of Product A, regardless of what else is in the cart.

Best for:\
– Limited stock items\
– Products that require strict control per SKU

## Collection Limit – Limit shared across all products in one collection

This rule applies to **an entire collection**.\
All products inside that collection share one total quantity limit.

Example:\
Collection “Sale” includes A, B, C\
Limit = 5 units\
A customer can mix products, but total quantity must be ≤ 5.\
For example:\
3 × A + 2 × B → Allowed\
4 × C + 2 × B → Not allowed (total = 6)

Best for:\
– Flash sale collections\
– Groups of products that should follow the same purchase restriction

## Order Limit – Limit for the entire cart

This rule applies to **an entire collection**.\
All products inside that collection share one total quantity limit.

Example:\
Collection “Sale” includes A, B, C\
Limit = 5 units\
A customer can mix products, but total quantity must be ≤ 5.\
For example:\
3 × A + 2 × B → Allowed\
4 × C + 2 × B → Not allowed (total = 6)

Best for:\
– Flash sale collections\
– Groups of products that should follow the same purchase restriction