using processing constraint to make selective open SO line DFF segment Read only.

Hi Team,

Pl advice whether using processing constraints can we make a specific DFF segment of Sales order Line to Read only for selected responsibilities? ( assume SO Header and Lines are open)

i did review this note : Doc ID 1085155.1 but not of much help.

Kindly suggest the feasibility of using processing constraint for the above  and if feasible broad outline of steps.

i understand this is achievable using forms personalization. wanted to understand if the same can be achieved using Processing constraint.

Regards,

bala