I have an integration that after an event is created on their personal O365 Calendar, it would create an event on their Zoho CRM Calendar in O365 that is synced with Zoho CRM. 

The problem is that after creating an event in the user's personal O365 calendar, two events would add in the Zoho CRM O365 Calendar. Both events are the event that was created in the personal calendar. It looks like the function is getting called twice.

Not sure why this is going on, but any help on this issue would be great.