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From teamboard in project click the setting cog on the right to got to Board Settings → Fields Setti
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Settings
Turn on the option “Map dates with Jira fields” and select the Jira fields you want to map to Start date and End date.
Depend on your project Screen Scheme the issue types in project may not have the fields you picked, this list shows a current statuses. The issue types which don’t have the fields won’t work properly, you should add the fields to the Screen of those issue types
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