How to make Type, Call Disposition and Comments fields mandatory for tasks with status completed vs tasks with status not started.
I know it can be done by having validation rules, but that won't show the thick red lines beside the field.
Do I need to write custom VF page to achieve this? It looks like a lot of work.
Basically we want to have mandatory fields different for Task with status completed vs Tasks with status Not started.
Below is the screen, I am referring to:
