Our users are unable to use the Outlook To Do app in the Outlook desktop client.

Anonymous
2023-02-10T15:57:32+00:00

It gives the error "There was a problem connecting to this app". Just doing a quick Google search it looks like a widespread problem. I have a ticket open with MS but no answers yet.

It does work in the Outlook online app.

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2023-08-05T10:50:14+00:00

    amazing it really works! thank you :D

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  2. Anonymous
    2023-08-10T14:00:55+00:00

    Reset the Office cache, it should fix the problem:

    1. Close Outlook
    2. Rename or Remove these two folders: %LOCALAPPDATA%\Microsoft\Office\16.0\wef %userprofile%\AppData\Local\Microsoft\Outlook\HubAppFileCache

    Re-open Outlook and click the "To-Do" shortcut, and it should open without issue.

    This fixed a user we had. Thank you for this.

    This fix was attempted and it did not work for me. On the latest version and build of Version 2307 (Build 16626.20170)

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    9 people found this answer helpful.
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  3. Anonymous
    2023-08-14T17:38:54+00:00

    I changed my Outlook display settings to "Optimize for compatibility" and it suddenly started working again. I changed it back to "Optimize for best appearance..." to be sure and received the error message again. Changing the display setting seems to be the fix.

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    10+ people found this answer helpful.
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  4. Anonymous
    2023-08-15T06:31:05+00:00

    Thank you for the recommendation. Unfortunately, It did not work for me (as well as resetting the Office Cache).

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    1 person found this answer helpful.
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  5. Anonymous
    2023-08-15T07:26:17+00:00

    This seems to be only valid for "Government Community Cloud tenants". Does anyone know if there is a fix for other tenants?

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