Move event to a different calendar
This example moves an event from one calendar to another. Supply the source calendar ID, target calendar ID, and the event ID.
Use case: Reorganize events across calendars.
UPDATE move_event -- Moves the event to a new calendar
WITH (SourceCalendarId='MySourceCalendarId', -- Original calendar ID
TargetCalendarId='MyTargetCalendarId', -- Destination calendar ID
Id='MyEventId') -- Event ID to move