Publish apps in the Microsoft Teams Tenant Apps Catalog
You can use the Microsoft Teams Tenant Apps Catalog to test and distribute line-of-business applications to your organization.
The Teams Tenant Apps Catalog lets you distribute line-of-business applications that were built specifically for your organization and that you rely on to complete critical business functions.
To publish apps for your organization, sign in to your Teams client using your global admin credentials and then follow the instructions below.
Publish an app in the Tenant Apps Catalog from the Teams client
You need to be signed in to the Microsoft Teams client using your global admin credentials to publish apps for your organization.
Get a Teams app package
A Teams app package is created by using Teams App Studio. Once you have the app package, you can add it to the enterprise app catalog. While all users in the tenant can view the app catalog, currently only global admins have the ability to publish and manage it. (Eventually, Teams admins will be able to do this as well.)
Go to the Tenant Apps Catalog
Start the Microsoft Teams client and sign-in using your global admin credentials. From the Microsoft Teams Store, select the new section named for your specific organization (in this example, Contoso). Users in your organization can view apps in the catalog and install them for teams of which they are a member.
Add an app to the Tenant Apps Catalog
From the store, select Upload a custom app > Upload for Contoso.
(You can also choose Upload for me or my teams, which is called sideloading. Sideloading makes the app available only to your teams or to teams you select.)
Navigate to the app package and select it, and then click Open.
When you go back to your Tenant Apps Catalog, the new enterprise app will be there. Remember, only you and members of your organization have access to this app catalog.
Update an app in the Tenant Apps Catalog
From your Tenant Apps Catalog, select “…” on the top right of the app you want to update.
Navigate to the updated app package and select it, and then click Open.
The app will be revised to version 2.0. You can also delete the app for your entire company from this menu.
Use the Office 365 admin portal to manage the Tenant Apps Catalog
If you have apps that need bug fixes, you can temporarily disable apps through the Office 365 admin portal. Select Settings > Services & add-ins > Microsoft Teams. In addition to previous settings, there is now a section dedicated to your company's apps. You can choose which apps you want to enable or disable.
Disabling an app will block users from interacting with the app, without deleting the app entirely. These controls give you additional flexibility and control when managing apps in your enterprise.