TeamBoard TimePlanner supports mapping the Start date and End date to Jira fields. Each project in Jira has a different Screen Scheme with different Fields therefore you need to configure the field mapping at the project scope.
Please note that when mapping date fields to Jira fields, the app follows Jira’s specs, and some advanced features such as scheduling tasks multiple times or planning one task for many users are not supported.
From Jira go to Apps → TeamBoard TimePlanner → Settings → Date Fields
Select the project you want to configure in the dropdown list, and then the same configuration with project board settings appears and you can map the fields.
Turn on the “Map dates with Jira fields” button and select the Jira fields you want to map to the Start date and End date.
Depending on your project Screen Scheme the issue types in the project may not have the fields you picked, this list shows a current status. The issue types that don’t have the fields won’t work properly, you should add the fields to the Screen of those issue types
Click Save to save the settings, after saving you can migrate the existing start dates and end dates in App’s data to Jira fields ( this is a way migration from App to Jira )
After configuring correctly, issues in the project will use Jira fields when planning with TimePlanner