Getting 2400 error in outlook application

Anonymous
2023-04-11T09:25:43+00:00

Hi,

Something went wrong [2400] error in outlook application. Web outlook is working fine.

Tried outlook repair, reinstallation, new profile creation and cleared password from device credential manager still issue persist. Seems like Microsoft issue. Screenshot attached

Please share any troubleshooting steps for permanent fix

Thanks

Anand

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2023-07-01T20:37:29+00:00

    This worked for me!

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  2. Anonymous
    2023-05-25T10:05:57+00:00

    Thank you

    Thank you

    Thank you

    Thank you

    Thank you

    This fixed the problem

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  3. Anonymous
    2023-04-26T17:22:44+00:00

    So not sure if this helps anyone but for me what fixed it was uninstalling/reinstalling outlook. The key was to add the account causing this error first and then adding my additional accounts after that.

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  4. Anonymous
    2023-04-25T08:41:50+00:00

    Hello. I've started getting this exact same problem this morning (25th April UK) Only affecting my outlook,com address in M365. Fine via web browser. Hasn't updated since sometime on Sunday 23rd.

    I've tried the suggestions here but nothing fixes the problem yet.

    FYI - also working fine on Android 11 phone

    Need assistance. TIA.

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  5. Anonymous
    2023-04-11T10:23:51+00:00

    Hi Anand,

    Good day.

    Hope you are doing well. Thank you for posting in Microsoft Community.

    According to your description, before moving forward, could you please allow me to collect below information to understand particular situation?

    * If you open Outlook in safe mode, are you getting this error message?

    * Please try to diagnose this situation via running Microsoft Support and Recovery Assistant tool. This tool may be help to diagnose Outlook related problems.

    * Could you please provide me brief Office version screenshot page? To know this, open any Office 365 application such as Word / Excel / PowerPoint / Outlook > File > Office Account and share with me entire screenshot page via private message.

    * On the other side, just for verification purpose, I would like to know if you are getting this situation on other Office applications such as Word / PowerPoint / Excel?

    * Whether this situation has happened with any other users in your organization?

    If you are getting any result via SARA tool, please try to provide that result in private message for further analysis.

    Note: due to data privacy, please share with me above requested information in private message. I sent private message.

    Here are the steps to open private messages:

    To view private messaging options> click your profile picture at the top on the right > select the My Profile option.

    Image

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    I will look forward to your further response about above requested information in private message. Thank you for your precious time.

    Stay safe and healthy.

    Sincerely,

    Darpan

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