Schedule lines with delivery block
Schedule lines which are blocked for delivery are refused for delivery.If complete delivery is required, the order referred to is notdelivered

Procedure
You should ensure that schedule lines blocked for delivery do notcreate an entry in the delivery due index. Note that you can then nolonger use transaction V.14 (display sales orders blocked fordelivery).
Requirements for creating a work list
The creation of an index for a blocked schedule line can be avoidedwith the following line in the user condition routine:
e.g. when using routine 104.

Remark
For additional documentation on the differences of a delivery block inthe order header and in a schedule line, see SAP note 42150 (OSSsystem).
Regarding the required coding segment, see SAP note 44052 (OSS system).