Due to the complexity/coding of recurrence rules across many of the calendaring clients/devices, it is recommended that you delete the single instance within the recurrence and create a new appointment/meeting in its behalf.
However there is then another edge case that you have to worry about.
If you have an appointment with no attendees added to it (just the organizer), then EWS may still complain and throw this error. Location = new Location // Check if the appointment has attendees other than the organizer.
This handler updates an existing recurring appointment in Microsoft Exchange.
This handle affects all occurrences of the recurring appointment.
You can use Dynamics 365 for Outlook to view any appointment records that you own that were created in Dynamics 365.
If you’re using Microsoft Dynamics CRM 2015 for Outlook or later, you can also synchronize appointment attachments if your system administrator has enabled this capability.Please see the following document for further details: Office 365 - Microsoft Office 2013 path to retirement.Important: There are times when you want to modify a single instance of a recurring appointment/meeting.Only provide info for fields where the data has changed.When updating the attendee lists, include ALL individuals, not just the additional people. A good standard choice is 'Send To All And Save Copy,' which will send all updates to all the attendees.A conference or a vacation is an example of an event.