---
title: Plan Requirements
description: Conflict rules let you control which items cannot — or must — be selected together inside a configuration. When a customer builds a product on your storefront, these rules run automatically.
---

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1. [NetSource Shopify Apps](https://shopify-apps-kb.nsource.com/shopify-apps-kb?hsLang=en)
2. [Configurator](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en)
3. [Conflict Resolution](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#conflict-resolution)

# Plan Requirements

## Conflict Rules, available in the Configurator app's Premium plan or higher, are automated constraints that dictate which product items must or cannot be selected together during a customer's configuration process. These rules are created once and can be applied across various storefront products, ensuring consistent, automated validation.

### Configurator Plan Requirement

Conflict Resolution requires the **Premium** plan or higher.

Navigate to the **Conflict Resolution** tab in the left-hand menu of the Configurator app.

### What are Conflict Rules?

Conflict rules let you control which items cannot — or must — be selected together inside a configuration. When a customer builds a product on your storefront, these rules run automatically. 

You create rules once, then assign them to any configurator products where they should apply.

Next:  [Understanding Rule Types](https://shopify-apps-kb.nsource.com/shopify-apps-kb/how-to-create-a-conflict-rule?hsLang=en)

 

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