{Know-how} D365 BPF - Business process flow Disable a field or make attribute readonly

Requirements are always crazy, suppose if you want to optionally disable or enable a field in BPF it is possible with XRM object model. The only change is the prefix which you need to add to your attribute's logical name

Xrm.Page.getControl("header_process_<field logical name>").setDisabled(bool);

{Know-how} D365 BPF - Business process flow Hide a field or Attribute using JS

Requirements are always crazy, suppose if you want to optionally hide and show a field in BPF it is possible with XRM object model. The only change is the prefix which you need to add to your attributes logical name

Xrm.Page.getControl("header_process_<field logical name>").setVisible(false);