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Monday.com Outlook Calendar Integration Not Working

Workaround available Web Updated October 21, 2026

Quick answer

Monday.com's Outlook Calendar integration only works with a Microsoft 365 Business Premium license and an online Exchange mailbox. On-premise Exchange or personal accounts won't connect.

Most likely fix: Check your Microsoft license and mailbox.

Symptoms

The Outlook integration won't authorize, events don't appear, or changes don't sync back.

Why it happens

  • No Microsoft 365 Business Premium license
  • On-premise Exchange mailbox instead of Exchange Online
  • Only one direction's template set up
  • Expired Microsoft authorization

How to fix it

Try these in order — the most common fix is first.

  1. 1. Check your Microsoft license and mailbox

    1. Confirm the account has Microsoft 365 Business Premium
    2. Confirm the mailbox is Exchange Online, not on-premise

  2. 2. Set up both sync templates

    1. The two-way sync uses two templates, one per direction; add both from the board's Integrate menu

  3. 3. Reconnect the integration

    1. Remove the Outlook integration and add it again, re-authorizing Microsoft

This guide also covers

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  • monday.com outlook sync

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