Preventing PMs from editing fields

[Deva]

As per our new requirement, Project Managers should not to edit the some of
the project and custom field values(these fields should be read only for
project Managers). What is best and efficient way to implement this.

Thanks,

 

[Jack Dahlgren MVP]

There is no good way to implement this.
You can trap for changes to the fields, but that sort of protection is
trivial to defeat, even accidentally.
Sorry.
Teach the Project Managers that there are consequences for modifying those
fields.

-Jack Dahlgren