---
title: Introduction
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

A custom module is a common requirement in digital experience projects. It allows developers to empower certain users to configure the site in new ways that are not available out-of-the-box.

This is the start of a series that shows how to create a basic custom settings module. To start with, the module will hold custom settings keys and values. Administrators and editors with sufficient permissions in the UI will be able to create and adjust the values of these settings, which you can access from your code.

🎬 [Video](https://docs.kentico.com/docsassets/modules/custom-settings/global-settings-intro.mp4)

> **Info:** The custom settings we’ll create initially will be **global** and not associated with any specific channel.
> We will create custom **channel-specific settings** later in the series.

> **Note:** Some of the materials here are not exclusive, and may look familiar if you've already completed other modules.

## Before you start

This series requires the following:

- Familiarity with [C#](https://learn.microsoft.com/en-us/dotnet/csharp/), [.NET Core](https://learn.microsoft.com/en-us/dotnet/), [Dependency injection](https://learn.microsoft.com/en-us/dotnet/core/extensions/dependency-injection), and the [MVC pattern](https://learn.microsoft.com/en-us/aspnet/core/mvc/overview).
- A running instance of Xperience by Kentico, preferably [31.7.2](https://docs.kentico.com/changelog.md) or higher.

  > **Note:** 
  >
  >  Some features covered in the training guides may not work in older versions. 

> **Info:** **Code samples**
>
> You can find a project with completed, working versions of code samples from this series and others in the [finished branch](https://github.com/Kentico/xperience-by-kentico-training-guides/tree/finished) of the _Training guides_ repository.
>
> The [main branch](https://github.com/Kentico/xperience-by-kentico-training-guides) of the repository provides a starting point to code along with our guides and learning modules.
>
> The code samples in this series are for [.NET 8](https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotnet-8/overview) only.
>
> They come from a project that uses [implicit using directives](https://learn.microsoft.com/en-us/dotnet/core/project-sdk/overview#implicit-using-directives). You may need to add additional `using` directives to your code if your project does not use this feature.