Can not import the App package in the Teams Developer Portal

Question

I downloaded and backed up the app's app package, then accidentally deleted the app in the Developer Portal. When I import the app's App package in the Developer Portal, I get the following error: "App Id already exists in app store. An app with that ID already exists in your organization's app store. Please change the app ID and try again." Please help me, what should I do now? I need to update the information of my App. 

Answer 1

Follow the steps to import and manage your existing app in Developer Portal:

In Developer Portal, select Apps from the left pane.

Select Import app.

[

](https://learn.microsoft.com/en-us/microsoftteams/platform/assets/images/tdp/import-app.png#lightbox)

Select the app manifest file, and then select Open.

Note

You can receive an error message such as Provided add-in package was not understood. Ensure that the file being submitted is a valid Office add-in package, if there are nested folders or missing files in the app package folder.

1. Select Import.

Developer Portal creates a unique app ID and locks the ID for your registered Teams app. You can’t edit or provide an ID of your choice, which prevents to have duplicate app IDs for multiple apps.

If you create an app using the Microsoft Teams Toolkit for Visual Studio Code, you can manage your app in Developer Portal.

• You can import an existing app to Developer Portal that was created in App Studio. If an app in your tenant doesn't have an owner, the Teams Tenant admin or Global admin can take ownership of the app from Teams Developer Portal. Follow the steps to import and manage your existing app in Developer Portal: In Developer Portal, select Apps from the left pane. Select Import app. [ ](https://learn.microsoft.com/en-us/microsoftteams/platform/assets/images/tdp/import-app.png#lightbox) Select the app manifest file, and then select Open.  Note You can receive an error message such as Provided add-in package was not understood. Ensure that the file being submitted is a valid Office add-in package, if there are nested folders or missing files in the app package folder. Select Import. Developer Portal creates a unique app ID and locks the ID for your registered Teams app. You can’t edit or provide an ID of your choice, which prevents to have duplicate app IDs for multiple apps. If you create an app using the Microsoft Teams Toolkit for Visual Studio Code, you can manage your app in Developer Portal. You can import an existing app to Developer Portal that was created in App Studio. If an app in your tenant doesn't have an owner, the Teams Tenant admin or Global admin can take ownership of the app from Teams Developer Portal. Ref Doc: https://learn.microsoft.com/en-us/microsoftteams/platform/concepts/build-and-test/teams-developer-portal#import-an-existing-app