# Concepts

This section delves into domain-specific topics related to the **Mews** system. An understanding of these will help you to make the most effective use of the API.

> #### Terminology
>
> Some of the terms used in the API, such as *Space Type* or *Client Token*, may not be familiar. For a full description of all the terms used, see the [Mews Glossary for Open API users](/getting-started/glossary.md).

## Contents

* [Restrictions](/channel-manager-api/concepts/restrictions.md)\
  An explanation of what restrictions are and how they are described in the API.


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