Unable to edit ‘Start day (WBS Gantt)’ field of WBS Gantt-Chart

Platform Notice: Server and Data Center Only - This article only applies to Excel-like Issue Editor for Jira Server and Data Center

Summary

 ‘Start day (WBS Gantt)’ field of WBS Gantt-Chart is grayed out and cannot be edited.

Answer

Please place and include the custom field to ‘Edit issue screen’ on Jira configuration screen.