Authentication Issues with Dynamics 365 App for Outlook

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Posted on by MS-28011339-0

Hello,

I am experiencing a recurring issue with the Dynamics 365 App for Outlook. After some time, the app loses authentication, and I am prompted to sign in again. This happens even while I am working, which is very disruptive. A screenshot of the window that appears is attached.

Steps I have already taken:

Added URLs to trusted sites.
Cleared browser cache.
Re-deployed the app.

Despite these measures, the issue persists. Could you please assist me with this?

Thank you in advance!

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Dynamics 365 general

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CU03022354-0 15 on at

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Had this issue that I have spent hours working on and to the point that I have to examine the cookies. The fix was to delete everything under: %LOCALAPPDATA%\Microsoft\Office\16.0\Wef\ . Please ensure to close all office application then delete all the files and folder under that directory then start outlook and re-login to D365 add-in and you should be golden.

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MS-28011339-0 13 on at

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This didn't work for me CU03022354-0.

Still the same Problem.

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