Could you please share your system architecture and flow of information. with the above thread it is not clear how the information flow takes place
Normally
Create STO-----Create OBD---Transfer the information to 3PL system using EDI /IDoc (Outbound IDoc) ---3PL perform picking process in their system and confirm back(Inbound IDoc) ---PGI of delivery takes place
As per your thread you want to generate TO so do you want to transfer the TO information to 3PL
Who is managing the WM system (3PL or Source company)