How to add sub operations to operations in order in PM.
In Operation Tab in PM Order, for maintaining sub operation do this :
Ex : Operation Activity field 0010 --> Maintain Data
Now in second row maintain as Operaiton Acitivty 0010 , Sub Operation field : 0010 --> then Maintain data
Similarly for second sub operation for 1st operation , Operation Activity 0010 , Sub Operation Field : 0020 , then maintain data ...
Thus in the above way you can maintain sub operaitons for an operation ..