---
title: How Rules Work on the Storefront
description: As assigned, configurator rules automatically manage product selections during the customer buying process.
---

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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)

# How Rules Work on the Storefront

## Once created and assigned, configurator rules automatically manage product selections during the customer buying process. 

### How Do Rules Work?

Once a rule is created and assigned to a product, it works automatically when customers use the configurator:

**Incompatible rules**:  When a customer selects the source item, all incompatible target items are grayed out and show a warning message. The customer must deselect the source item to make those targets available again.

**Requires rules**:   When a customer selects the source item, the required target items are automatically added to the configuration with a message explaining why. The required quantity you set is respected.

Rules only apply to products they are assigned to. A rule has no effect on a product until you explicitly assign it.

Next:  [Best Practices](https://shopify-apps-kb.nsource.com/shopify-apps-kb/best-practices?hsLang=en)

- [Configurator](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#main-content)
  
  
  
  
  
    - [Getting Started](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#getting-started)
    - [Billing & Plans](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#billing-plans)
    - [Products & Configurations](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#products-configurations)
    - [Quotes & Quoting](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#quotes-quoting)
    - [Reports & Analytics](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#reports-analytics)
    - [Conflict Resolution](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#conflict-resolution)
    - [Price Sync](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#price-sync)
    - [Settings](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#settings)
    - [Troubleshooting](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator?hsLang=en#troubleshooting)
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- [Configurator Marketing Automation Add-on](https://shopify-apps-kb.nsource.com/shopify-apps-kb/configurator-marketing-automation-add-on?hsLang=en)

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