We are using flag1 for a field in Change_Request that allows the Change Manager to select it when a CR has been presented at CAB. How do I make a data partition constraint that prevents certain roles from being able to update this? This one is confusing to me because it is Boolean in the sense that with no check mark in the box it still represents a value of zero. Do I restrict it from equaling a value of "1"? I have tried the Update constraint using: flag1 NOT (code IN ('1')) and many other combinations. Any assistance would be appreciated.