I am developing an external app of Microsoft Teams.
I want to synchronize "channel members of my external app" with "channel members of Teams".
So I want to know modifies of channel members of Teams as follows:
- Someone has created a Teams channel.
- Some members have joined the Teams channel.
- Some members have left the Teams channel.
I understand I have a Webhook and an Office 365 Connector, but I can only receive chat events.
I also understand that the Microsoft Graph API can be used to know channel information. However, this doesn't help up to know the change events for Microsoft Teams channel members.