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uid: input-system-migrate-from-old-system
---

# Migrate from the old input system

This page is provided to help you match input-related API from Unity's old, built-in input (known as the [Input Manager](https://docs.unity3d.com/Manual/class-InputManager.html)) to the corresponding API in the new Input System package.

## Read the introductory documentation first

If you're new to the Input System package and have landed on this page looking for documentation, it's best to read the [QuickStart Guide](quick-start-guide.md), and the [Concepts](understanding-input.md) and [Workflows](Workflows.md) pages from the introduction section of the documentation, so that you can make sure you're choosing the best workflow for your project's input requirements.

This is because there are a number of different ways to read input using the Input System, and some of the directly corresponding API methods on this page might give you the quickest - but least flexible - solution, and may not be suitable for a project with more complex requirements.