Not able to add SharePoint site as Personal tab App

CKSanghavi - To create a personal tab in Teams that showcases your SharePoint site's home page, you need to follow these steps:

1. Upload and deploy your Teams app package to your SharePoint App Catalog. You can access the SharePoint App Catalog by visiting https://YOUR_TENANT_NAME.sharepoint.com/sites/apps/AppCatalog/Forms/AllItems.aspx. For example, https://contoso.sharepoint.com/sites/apps/AppCatalog/Forms/AllItems.aspx. Make sure to enable the option "Make this solution available to all sites in the organization" when prompted.

2. In your SharePoint site, create a new page by selecting the gear button at the upper right and then selecting "Add a page". Name the page as "My Teams Tab".

3. Open the web part toolbox by selecting the + button, and search for your Teams Tab named "Contoso HR". Select it to add the web part to the page.

4. Edit the page as needed and select the "Publish" button when finished.

5. Optionally, you can add the page to the navigation bar by selecting "Add page to navigation".

After following these steps, your SharePoint site's home page should be showcased as a personal tab in Teams.

You can also refer this documentation: Build Microsoft Teams tab using SharePoint Framework - Tutorial | Microsoft Learn

Thanks, 

Prasad Das

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