I want due date to be entered by the users but once entered they shouldnt have access to modify the due dates, only admin can

[ANIRUDH RAMESH]

I want due date to be entered by the users but once entered they shouldnt have access to modify the due dates, only admin can

[Steven F Behnke]

There's no explicit way to do this. Perhaps you could do something like this – 

• For your Screen Scheme – 
  • Set the Due Date field on the Create and View Operations
  • Do NOT set the Due Date field on the Edit Operation
• On the Workflow – 
  
  • Add a New Transition ^{Origin: Any Status; Destination: Itself}
  • Name it Edit Due Date
  • Add a Screen with just the Due Date field
  • Set a Transition Condition for Project Role - Administrator

[Peter Bengov]

As Steven mentioned, there is no straightforward way to do so. On top of the suggestions raised, you can also use these workarounds:

1. Add this field on Create screen so the reporter would add. Don't show the field on View screens. 
2. Then copy the value from this field into a different new custom field with a post function on Create transition. 
3. Show only that copied custom field in the View screens.
4. If you like, you can add the Due Date field in a new tab called Admin or something like that (users don't usually navigate to other tabs) and there you can have the original field for admins to edit.