Are you planning a migration to Cloud? Make sure you don't lose your BigPicture data/configurations in the process. Check out this page for information on how to migrate BigPicture's data to Cloud. If you have any questions please email email@example.com
There are different ways in which you can add tasks using the Gantt module. You can add tasks one by one or add a group of tasks to the scope of the Box. When you use Gantt's interface, besides adding Jira issues, you can also add Basic tasks which will only be displayed using the App.
Create a new Jira task (issue) using the task creation screen. Any issue type can be added as a task. If a task is already selected, the new task will be added just beneath it on the same level in the hierarchy.
Depending on the project synchronization settings, adding new tasks might update different fields mapped as start and end dates. To learn more go to the Fields configuration page.
For example: If the "Start Date" field is not synchronized or it is not added to the appropriate issues screen when you add a task there will not be any update of the "Start Date" field. However, when the "Start Date" is synchronized, adding a task without setting the start date estimate will result in a task update, and the "Creation Date" will be used as the "Start Date" (the "Creation Date" will also be used as the "End Date" if the task is not resolved).
In the cloud version of the App, you cannot create a Jira sub-task on Gantt - this functionality works only for the Server version of the App. More information on the differences between cloud and server versions of the App can be found here.
Make sure you have selected the correct Jira project. Otherwise, you might unintentionally create a task in the wrong place.