Feature Requested: In some scenarios customers might need to have the ability to allow/prevent specific fields to be edited when the issue is in a specific status in the workflow.

Current Workarounds:

• Use a listener (scriptrunner or JMWE or similar app) to prevent the field from changing value to that specific status
• Completely prevent the issue of being edited on the specific status, by using workflow properties inside your workflow (jira.issue.editable).
• Remove that field from the issue's edit view completely and add a self transition to edit that specific field (use a transition screen with this field in it) to all statuses except the desired status.
• Reference Community post: HERE.