> For the complete documentation index, see [llms.txt](https://docs.paretodeals.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.paretodeals.com/pareto-limit-purchases/app-settings.md).
# App settings
### 1. Mix & Match limit rules
When a variant is added to the cart, it must meet the following rules in order
* Variant rule (If any)
* Product rule (If any)
* Collection rule (If any)
* All Product rule (If any)
Example, you have 2 limit rules
* Rule 1: Product A quantity must be between 1 and 3
* Rule 2: Total cart quantity must be greater than 5
**⇒ Customer must purchase 1 to 3 units of Product A and at least one additional product to ensure the total cart quantity exceeds 5 before thay can proceed to checkout**
* Admin setup: General settings -> Check "Mix & Match limit rules
### 2. Sync product data
* Click the "**Sync data**" button so the app can use data on your store
