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The setup process for Excel, Outlook and other Microsoft tools require an Entra admin (Microsoft Entra ID ‘privileged role administrator’ or ‘application administrator’) who is also a Dust Admin. This ensures full access to the necessary permissions.
It is recommended for Admins to perform the following steps from a Private browser session or a new browser, to avoid using their currently active Microsoft session.
Under Spaces > Tools, Select Add Tools. Then select a Microsoft tool. An OAuth modal will appear to allow you to allow Dust to access Microsoft account. On the first connection, tick the box Consent on behalf of your authorization. When this checkbox does not appear, it means that an EntraID admin will need to validate your Consent Request from the Admin consent requests panel NB : If you’re not an admin on your Microsoft workspace, will have to ask your administrator to consent Dust permissions for you. Once you clicked on “Request Admin consent”, you will have to wait for the administrator to validate your request in their Azure admin panel (nb : this might take a few minutes before showing up on the Azure admin panel)Once authorised, perform step 3 again. This time around, the connection will finalize.
Alternative setup outside of DustEntra admins can also decide to create the application in Entra themselves, and will need the following consent URL (example for Outlook+Sharepoint, tweak the scopes as needed with the following permission matrix)

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The Dust-Tools Application in EntraID

When consenting on behalf of your organization, (or requesting your admin to do so) Dust will create an entreprise application in Entra. The following permissions will be requested by the app. In this case, the Delegated type means that even if the requested permission claim is high, it will be delegated to the user when using Dust. (ie. if a user cannot read chatMessages, they won’t be able to by using the Dust-Tools app)

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Outlook (MCP Tool) - delegated permissions

  • Mail.ReadWrite - Read and write user mail
  • Mail.ReadWrite.Shared - Read and write shared mail
  • Contacts.ReadWrite - Full access to user contacts
  • Contacts.ReadWrite.Shared - Read and write shared contacts
  • User.Read - Sign in and read user profile
  • offline_access - Maintain access to data

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Outlook Calendar (MCP Tool) - delegated permissions

  • Calendars.ReadWrite - Read and write calendars
  • Calendars.ReadWrite.Shared - Read and write shared calendars
  • User.Read - Sign in and read user profile
  • MailboxSettings.Read - Read mailbox settings
  • offline_access - Maintain access to data

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Microsoft Drive (MCP Tool) - delegated permissions

  • User.Read - Sign in and read user profile
  • Files.ReadWrite.All - Full access to all files user can access
  • Sites.Read.All - Read items in all site collections
  • ExternalItem.Read.All - Read items in external datasets
  • offline_access - Maintain access to data

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Microsoft Teams (MCP Tool) - delegated permissions

  • User.Read - Sign in and read user profile
  • User.ReadBasic.All - Read all users’ basic profiles
  • Team.ReadBasic.All - Read names and descriptions of teams
  • Channel.ReadBasic.All - Read channel names and descriptions [2,3]
  • Chat.Read - Read user chat messages
  • Chat.ReadWrite - Read and write user chat messages
  • ChatMessage.Read - Read user chat messages
  • ChatMessage.Send - Send user chat messages
  • ChannelMessage.Read.All - Read user channel messages
  • ChannelMessage.Send - Send channel messages
  • offline_access - Maintain access to data

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Microsoft Excel (MCP Tool) - delegated permissions

  • User.Read - Sign in and read user profile
  • Files.ReadWrite.All - Full access to all files user can access
  • Sites.Read.All - Read items in all site collections
  • offline_access - Maintain access to data

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Summary Table