Solution : https://service.sap.com/sap/support/notes/716899 (SAP Service marketplace login required)
Key words :
call_function_conflict_typethe function module interface, attached correction instructions, prerequisites program error, function module, sales order, short dump, type conflict, terms cx_sy_dyn_call_illegal_type, field type, implemented note 645021
Related Notes :
| 645021 | Field FMIOI-RFSYS has incorrect values |