Hi,

The issue comes from synchronizing recurring Outlook events with Odoo. Recurring meetings that were created before enabling the Odoo–Outlook sync don’t always appear in the Odoo calendar, while newer ones often do. This happens because Outlook stores recurrence rules and exceptions differently, and Odoo doesn’t always interpret past recurring events consistently. That’s why some events show up while others don’t.

To resolve this, first check your Outlook connector settings in Odoo SH to ensure recurring events are enabled. Updating or resaving the recurring meetings in Outlook often forces Odoo to recognize them. If events have exceptions, like moved or canceled dates, cleaning those up can also help. Testing with a new recurring meeting will confirm whether the problem is only with older Outlook events. If new ones sync fine, then the issue is specific to legacy events.

If the problem continues even with new events, it may be a bug in the v18 Outlook connector. Since you’re on SH Enterprise, the best option is to open a support ticket with Odoo so they can review logs and confirm if it’s a bug or limitation. A fallback approach for critical recurring events is to recreate them in Outlook after enabling sync so Odoo can handle them cleanly.

References

* https://www.youtube.com/watch?v=SlO4C3EeG-4

* https://www.odoo.com/documentation/18.0/applications/general/integrations/mail_plugins/outlook.html

* https://www.odoo.com/documentation/18.0/applications/general/email_communication/azure_oauth.html

Hope it helps