Solution : https://service.sap.com/sap/support/notes/321909 (SAP Service marketplace login required)
Key words : 
>> release 45a - 45bcomponent        component type    >> release 46a - 46c delnr          delnrdelps          delpsdelet          deletxline          xlineyline          xlinelogqs          logqslogsys        logsysordid          apoordidtmpflg        tmpflgposguid        posguidbdmng          bdmngvmeng          bestmngfixmg          fixmgaporel        saprlatpm1          atpmngatpmg          atpmngrpflg          rpflgsysind        sysindmatnr          matnrwerks          werks_dlocno          apolocnoloctype        apoloctypesobkz          sobkzkdauf          kdaufkdpos          kdpospspel          ps_posnrlgort          lgort_dcharg          charg_derrkz          errorkzbdter          bdterremflg        rrflgsurea          sureachmod          chmodkosch          koschprreg          prregttype          char10double-click, msehi atpm1                    mara                     meinsatpmg                    t006                    msehibdmng                    t006                    msehisave activelydevelopment class atpgcall transaction se37, table parameters          reference structure                 optional ix_atpcs_ret              atpcs_ret                  xix_mdve                   mdve                       xix_atpterm                atpterm                    xix_qtvb                   quot_vb, radio button 'structure'>> release 46c, select radio button 'data type', data element      >> release 31i - 40bfield, apo release 3, thenradio button 'structure'object, t006        reference field, select 'create' buttonshort description
Related Notes : 
       
| 375193 | Backorder processing: Composite SAP note on posting | 
| 350226 | Copy confirmed quantities | 
| 350180 | Backorder processing: check time stamps | 
| 334897 | Extension of structure CIF_SL_ID | 
| 332401 | Backorder processing: Result transfer, value addition | 
| 330298 | APO backorder processing for sourcing items | 
| 321913 | Transfer of the backorder processing results | 
| 321702 | Transfer of results of APO backorder processing | 
| 315924 | (R/3) backorder processing enhancement with header segment |