Teams - Graph - Recurring Events (Determine which Calendar Event does my Chat Message belong too)

Hey all,

So we have been able to use SystemEventMessages with CallStart and CallEnd to discover the Chats which also allows us to discover meetings which is all working nicely apart from one situation....

Recurring meetings...

These meetings will always associate with the master recurring meeting and we have not been able to discover the original Calendar Event ID for the meeting occurrence rather than the master.

Can you point me in the right direction for how to take a Chat Message (SystemEvent) and discover which Calendar Event it is a part of.

Kind regards
Warren