Hi,

We are an events company. First of all there is no field for event date in zoho estimate and invoice. 

Currently we are using Due date as events date. 

Another problem is there is no way our google calendar is able to be auto updated when the due date is updated. So far, your team has informed that they are only able to sync invoice date to calendar. But it will be of great help if you are able to link due date to calendar.

In that case we do not have to manually key in our event dates in our calendar. This will enhance our productivity and reduce on human errors when updating the calendars manually.

Even best, if you can include an "Event Date" field and link that to the calendar.