Credit Order without Stock - Default line type for Component item is differnt than Parent

Hi All,

I have created credit order, parent item has line type "SC" as per activity rule and processing option but component items have line type "S" instead of "SC". This is causing to advanced the stage for component items and residing in open state.

Can you anyone help me to understand what causing to update line type "S" for component item.

Parent item STKT = "K"

Component item STKT = "S"

Line type in item branch is same for both  = "S"

Order Activity Rule and Proc Option line line type :  "SC"

Please let me know if you need further more details