Alternate Sequence operation confirmation ...

hi folks ,

i have 3 operation in STD seq like 10, 20, 30

and for the std sequence thr is alternate seq. which contain alternate operation for

20 th operation of STD.

FOR operation 20 now :

In STD seq only one activity Machine time required for 1 item to process is 10 min.

In ALT seq only one activity Machine time required for 1 item to process is 5 min.

when i am confirming the 20 operation in CO11 the time required for the opr 20in ALT seq opr. 20 is not appering on the QTY / YIELD .

regards