To use the Calendar feature, you have to have Quintessence Plan.
The calendar feature allows you to see all upcoming deadlines, renewals, and anything related to the contract manager in Zapendo.
To add something to a calendar, go to a current contract, deliverable, task, or company. Find an "Expiration date" and click on "Add to calendar."
You can also add this date to some else's calendar by clicking on the button next to it and selecting a user from the list.