Service mappings for subinventory

Summary:

How to set up a service mapping for destination subinventory in a transfer order / purchase requisition created from a planned order in SCP?

Content (required):

Transfer orders and purchase requisitions created from planned orders from the Supplies and Demands table in a Supply and Demand plan in Supply Chain Planning do not have a destination subinventory in entered. Although it is present in the uploaded forecast in Supply Chain Planning. As a work around we would like to use service mappings in Supply Orchestration. We first tried to make a mapping this with a note to supplier field. This was succesful. It was automatically defaulted from the service mapping into the transfer order. But the DestinationSubinventoryCode is not succesful. Does any one know how to