W&D: Restricting Editability / Relevance of Standard Fields like Shared Category etc.
In Workflow & Documents, Is there a way to restricting Editability / Relevance of Standard Fields like Shared Category.
The requirement is to allow the setting of Category value only in draft state. Once it moves from Draft state, no one should be able to change the category value.
The Editability & Relevance tab is not visible for standard fields as well on the 'Override of Fields' on the Type.
I tried playing with constraints too but it did not helped.
One way I can think of is calling a trigger to abort when someone changes category value. But I want to avoid customization. Appreciate any help.

