Resticting a specific field value from the group of values
I want to to restrict a field with one value from the group/range of values in a particular object.
For example Under object M_MATE_WRK, for field WERKS the avilable values are say AGFD,BCDS,FRDS,REFS,etc.....
i want to restrict one value say BCDS and rest all the values to be given to user.
is there any specific procedure is available for the same