Once published, users can find your add-on in the [Google Workspace Marketplace](https://workspace.google.com/marketplace?host=classroom). The add-on's entry in
Marketplace is referred to as the **listing**.

## Listing fields

An add-on listing allows users to preview and install your add-on. You control
the information and screenshots in the listing. You can provide titles and
descriptions in multiple languages.

![gac-gwm-listing](https://developers.google.com/static/workspace/classroom/add-ons/images/gac_gwm_listing.png)

**Figure 1.** A Classroom add-on listing as viewed by a teacher.

A "Works with Classroom" label is automatically applied to your
listing. See [Listing settings](https://developers.google.com/workspace/classroom/add-ons/developer-guides/project-configuration#workspace_marketplace_name-listing) to learn about configuration details for
Classroom add-ons.

## Installation

An add-on must be *installed* before users can select it in the Classroom UI.
Users can install the add-on by clicking the buttons at
the top of the listing.

### Installation options

All add-ons can be installed by an administrator. You can optionally choose to
also allow *individual* installation.

> [!IMPORTANT]
> **Key Point:** Users can see more than one installation option depending on the user's role in the domain. Teachers can only install an add-on for themselves, but administrators can install an add-on for themselves and others.

#### Individual installation

Individual installation adds the add-on to the user's own account only. This is
the only installation type that teachers can perform. The installing user is
prompted to consent to the add-on's access scopes.

Administrators can restrict individual installation to approved add-ons only by
setting up a Google Workspace Marketplace allowlist. See [Individual
installation](https://developers.google.com/workspace/classroom/add-ons/developer-guides/project-configuration#individual_installation) for more information about this user experience and configuration.

#### Administrator installation

Administrator installation adds the add-on to users in specific organizational
units or all accounts in the domain. Only domain administrators can perform this
type of installation. The administrator can consent to all access scopes on
behalf of all users in the domain.

See [Installation settings](https://developers.google.com/workspace/classroom/add-ons/developer-guides/project-configuration#installation-settings) for configuration details.