Diagnosis
You have tried to create deliveries from HUs which need to be pickedfrom the warehouse. You have also transferred a shipment in order toassign the new deliveries to it.

System Response
Processing cannot be carried out this way.

Procedure
If you create deliveries from HUs which do not need to be picked fromthe warehouse, the new deliveries cannot be transferred to a shipment.
If you create deliveries from HUs which need to be picked from thewarehouse, you have to assign the new deliveries manually to ashipment.