BOM material not getting consumed in first operation

Dear Friends

For a particular material X has a BOM. The sub item in BOM is Y. X has a routing with 3 operations. The operations are as follows:

0010 RHLHT005 RILH PD01 HEAT TREATMENT

0020 RHLSB011 PP01Finished Casting(fetttling & Final Insp)

0030 PP04 Line Inspection

When we are confirming the production order through CO11N, BOM material Y is not getting consumed through operation 10. But BOM material Y is getting consumed Through operation 20.

What customization we need to do, so that Y gets consumed in operation 10?

Can we link up BOM and routing operations in CA02?

Thanks

Chandra