Delivery of Sales BOM Item

Hi All,

We are creating automatic delivery from Sales Order.Items in sales order is Sales BOM.quantity is calulated based on sales factors of item.,but when we change the quantity on sales order ,SAP automatically sets the factor values to 1.

we are getting factors from item master on delivery document,but it is updatinng the quantity of parent item only i.e not updating the child item quantity.

suppose parent item quantity i set to 5 it still show child item quantity as 1 on delivery.

how to do this,

thanks,

neetu