Hi @Iniobong Nkanga
You can upload Microsoft Teams apps without having to publish to your organization or the Microsoft Teams Store in the following scenarios:
- You want to test and debug an app locally yourself or with other developers.
- You built an app for yourself to automate a workflow.
- You built an app for a small set of users, such as, your work group.
You can upload your app to a team, chat, meeting, or for personal use depending on how you configured your app's scope.
1.Log in to the Teams client with your Microsoft 365 development account.
2.Select Apps > Manage your apps and Upload an app.
3.Select Upload a custom app.
4.Select your app package .zip file.
5.Add your app to Teams as per your requirement:
6.a. Select Add to add your personal app. b. Use the dropdown menu to add your app to a Team or chat.
For more details please refer to Upload your app in Teams
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