topic RE: Issues Implementing Microsoft Graph API for Outlook - Token Errors in Digital Exchange

Issues Implementing Microsoft Graph API for Outlook - Token Errors

kpb26 — Tue, 16 Mar 2021 20:39:00 GMT

We are attempting to implement the Microsoft Graph API for accessing an outlook mailbox. I am very new to Azure, so I don't know much about configuration in that tool, so I believe I need help configuring my setup in Azure to support calls to the API. Currently I am attempting to just use the List Messages action, and am getting the following error message:

Internal : Unexpected error Error during Web API HTTP Request
HTTP Status Code: 401
HTTP Response Content: {"error":{"code":"NoPermissionsInAccessToken","message":"The token contains no permissions, or permissions can not be understood.",

Thanks for any help

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Kevin Babb
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RE: Issues Implementing Microsoft Graph API for Outlook - Token Errors

shashank.kumar280 — Wed, 17 Mar 2021 03:35:00 GMT

Hi Kevin,

From the error message it looks like the the Azure app has no permission to access the mailbox. Under the azure app that you would have created, there is a section for API permissions where you can Add permissions.

Look for application permissions and select the relevant permissions required based on the method that you are going to use. Example - For List messages , refer https://docs.microsoft.com/en-us/graph/api/user-list-messages?view=graph-rest-1.0&tabs=http for the permissions required and add it for your app accordingly.

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Shashank Kumar
DX Integrations Partner Consultant
Blue Prism
Singapore
+6581326707
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RE: Issues Implementing Microsoft Graph API for Outlook - Token Errors

kpb26 — Wed, 17 Mar 2021 13:09:00 GMT

Thank you for that feedback. Attached is a screenshot of my API permissions (there may be some I don't need, I'm mostly just throwing things at the wall to see what works).

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Kevin Babb
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RE: Issues Implementing Microsoft Graph API for Outlook - Token Errors

kpb26 — Wed, 26 May 2021 14:50:00 GMT

We ended up resolving the issue by using Application Permissions rather than Delegated Permissions for anyone who is having the same problems

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Kevin Babb
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