The reduction of the allocation can exceed the sum of the
quantity in the Subsequent Delivery field and the quantity in the To Issue field. In this case, the Subsequent Delivery field is set to zero, and the value
of the To Issue field becomes negative. The negative quantity in the To Issue field means that this quantity is posted back to inventory. The
value of the Actual Quantity field is reduced by the same
quantity.
Only Allocations
The allocation of material is reduced. The Subsequent Delivery field and the To Issue field in the Material to Issue for Production Orders (ticst0101m100) session are reduced by the same
quantity. The Subsequent Delivery field and the To Issue field can be reduced to zero but cannot become negative. This
condition also limits the reduction of the allocations. Any issued quantities
remain unchanged.
The allocations and issued quantities are not affected in any
way, not even when the Quantity Ordered field is changed for Created production orders without regenerating the orders ( Update Method in the Production Order (tisfc0101s000) details session is No Action or Recalculate).