The synchronization of the following field types is supported:
Date time Picker
Original estimate (Time tracking field)
Date time picker fields are only available on Jira server versions.
It is also possible to disable the synchronization with Jira by selecting the --Not Synchronized-- option. By default the Start / End date custom fields created during the installation are selected.
Date pickers as Start and End dates
Date picker with Original Estimate
The video below show shows what happens with you your task when Original estimate of Time tracking is used as the End date. As the Original estimate is mapped as the End date, moving the right edge of the tasks changes the OE only. When the right edge is moved both the Start date and Original estimate are updated.
As the Remaining estimate is set, changing the Original estimate affects the progress calculation: