What values to put under "WebApplicationInfo"'s <Resource> tag, while configuringthe manifest file of an Outlook Add-In for SSO.

Question

1. We have developed a ReactJS, web-based, Outlook Add-In , using Microsoft JavaScript Office APIs.
2. The Outlook Add-In is hosted on the URL "https://cmicpublish.cmicglobal.com/cmicdev/outlookplugin/".
3. The URL of the landing page of the Add-In being "https://cmicpublish.cmicglobal.com/cmicdev/outlookplugin/taskpane.html".
4. Now, we want to call the "Office.context.auth.getAccessToken" Office API, to retreive an authentication for calling Microsoft Graph APIs.
5. For this, it is required to add a new "WebApplicationInfo" section in the manifest file of the Outlook add-in, like this:
6. We also have an Azure application, set up according to our requirements. Please assume that, in the following section, "12345678-abcd-1234-efab-123456789abc" is the Id of our Azure application. https://learn.microsoft.com/en-us/microsoftteams/platform/tabs/how-to/authentication/tab-sso-manifest

<WebApplicationInfo>

  <Id>12345678-abcd-1234-efab-123456789abc</Id>

  <Resource>api://___ _ _ _/12345678-abcd-1234-efab-123456789abc</Resource>

  <Scopes>

    <Scope>Files.Read.All</Scope>

    <Scope>offline_access</Scope>

    <Scope>openid</Scope>

    <Scope>profile</Scope>

  </Scopes>

</WebApplicationInfo>

**
Question**

For our case, as explained above, what should be the value in the <Resource> XML section.

Answer 1

Hello Arun Singh,

Thank you for reaching out to Microsoft Support!

According to the documentation, the value of <Resource> is the Application ID URI of the add-in as registered in the Azure Active Directory v 2.0 endpoint.

The Application ID URI is set when we register the application, as shown below, see the documentation for details.

Hope this helps.

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Answer 2

Thank you for your response, @Anonymous .

But we still have questions which we would like to be answered.

We understand that the value of <Resource> is the Application ID URI of the add-in as registered in the Azure Active Directory v 2.0 endpoint.

But, our prime question is what should be that value? What should we put under the Application ID URI in our registered in the Azure Active Directory v 2.0 endpoint?

• Should it be the URL of our Outlook Add-In?
  Our Outlook Add-In is hosted/deployed under a "Kubernetes Containers" with an URL "https://cmicpublish.cmicglobal.com/cmicdev/outlookplugin/"
• When we try to put https://cmicpublish.cmicglobal.com/cmicdev/outlookplugin/ in our Azure application ID URI, we get this error:
  
• We are unable to figure out what URL are we required to put here.