When a user opens a Tableau view from within the Microsoft Teams app, the view fails to load and displays a blank page. No error or warning is shown — the interaction simply results in an empty frame.
In Tableau Cloud, navigate to Settings → Connected Apps and open the connected app used for the Microsoft Teams integration.
Locate the Domain allow-list setting for the connected app.
Either select All domains, or, if your organization's policy requires restricting domains, set the allow-list to specific domains and add the following Microsoft Teams-related domains:
tableau-ms-teams-prod-gycea7csh5hsbfh5.a02.azurefd.net
teams.microsoft.com
*.teams.microsoft.com
teams.cloud.microsoft
*.teams.cloud.microsoft
*.sharepoint.com
Save the connected app settings, then reload a Tableau view from within the Teams app to confirm it now displays.
Tableau App for Microsoft Teams — Setup Guide (domain allow-list)
https://github.com/tableau/tableau-app-msft-teams/blob/main/SETUP.md
Tableau App for Microsoft Teams — How To Use
https://github.com/tableau/tableau-app-msft-teams/blob/main/HOW_TO_USE_TEAMS.md
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