Solution : https://service.sap.com/sap/support/notes/181719 (SAP Service marketplace login required)
Key words :
modify structure hv03v structure hv03v, attached source code corrections, additional key words crm, apply field wrkmod, select field keep_lm, structure hv03v, crm sales order, click 'insert line', field keep_lm, empty line
Related Notes :
| 195884 | Collective note: Link between CRM and APO |
| 178064 | POSGUID + ATP work mode at the BAPI interface |