Solution : https://service.sap.com/sap/support/notes/327916 (SAP Service marketplace login required)
Key words : 
apo /sapapo/apo_scheduling/sapapo/tstr_generate_remote /sapapo/tstr_mapping_get/sapapo/tstr_mapping_set/sapapo/tstr_rfdest_set/sapapo/tstr_rfdest_get server module, time streamresponsible            sapapplication component  bc-srv-asftransport layer        sbcxsoftware component     sap_basiscreate function group, additional key words scheduling time stream client module, st3rshort text             time stream utilities remote, factory calendar/working time, short description      basis development, function group, apo transport, function modules ts3r_periods_factorycalendar, cif plug-ins
Related Notes : 
       
| 382746 | Collective note: Delivery+transportation scheduling with APO | 
| 322509 | APO integration of scheduling "Exit inserted" | 
| 195884 | Collective note: Link between CRM and APO |