How to restrict Completed Tasks in-line edit for Assigned field.

Summary

It is not possible to restrict Completed Tasks in-line edit for Assigned field.

Content

Hi All

Business Scenario:

Auto Tasks ( Travel to Customer and Replace FR materials etc.) are created and Assigned to default Area Managers.

Area Managers should be Reassign Tasks to Service Engineers but Completed Tasks should not allow to inline edit by Area mangers.

In Incident  Workspace , Task Control Report allowed to inline edit and mapped to Area mangers. Area mangers able to Reassign all the Tasks irrespective of tasks Status.

How to restrict Completed Tasks in-line edit for Assigned field.