Syncing my GCalendar with my Outlook calendar on MAC and iOS

Question

Microsoft 365 Personal, New Outlook for Mac, Google account connected via native Google sync (Microsoft Cloud sync, shows "Connected," no client-side errors). This is a Google Workspace custom domain, not a plain Gmail address.

Symptom: Calendar sync is one-directional only. Events created in Outlook sync to Google Calendar immediately. Events created directly on my primary Google Calendar never sync into Outlook, confirmed by creating a fresh test event and watching it fail to appear after several minutes.

Both directions worked correctly until July 28, 2026, when inbound sync stopped completely with no configuration changes on my end.

Already ruled out:

• Google Calendar's "Add invitations to my calendar" is set to "From everyone"
• Account is connected via native Google sync, not IMAP
• Well under the 20-calendar limit

This looks like the same pattern described here: [link to: learn.microsoft.com/en-sg/answers/questions/5916596], so it doesn't appear isolated to my account. Chat support hasn't been able to get past basic troubleshooting steps I'd already completed. Could this get routed to whoever handles backend investigation of the Google-to-Microsoft Cloud sync pipeline?

Answer 1

Hi Gavin Mcleod

Based on your description, the Google account is correctly connected through native Google sync with Microsoft Cloud. Events created in Outlook still sync to Google Calendar; however, events created directly in the primary Google Calendar have stopped appearing in Outlook for Mac and Outlook for iOS since July 28, 2026.

Since the incident occurs across multiple Outlook apps, affects only the Google-to-Outlook sync direction, and started without any configuration changes, it may be related to the Microsoft Cloud sync service rather than the local Outlook settings.

Please note that this is a user-to-user support forum. Moderators, contributors, and external Microsoft employees participating in the forum cannot intervene directly in Microsoft product features or access back-end systems. Our role is limited to providing technical guidance on issues, requests, and ideas reported in the forum.

For further investigation, please contact Microsoft Support in Outlook for Mac by selecting Help > Contact Support, or visit Contact Microsoft Support, then follow these steps:

• Select Show expanded list of products.
• Select Outlook > Get Home support.
• Enter Outlook live chat in the search box, then select Get Help > Contact Support.
• If you cannot sign in with the affected account, use a different Microsoft account to access the support options.
• Under Products & Services, select Other Products > Outlook, then choose Chat with a support agent via web browser.

Thank you for your understanding.

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