Solution : https://service.sap.com/sap/support/notes/770673 (SAP Service marketplace login required)
Key words : 
/sapapo/om_check_activities728288  20/28  2 integrated consistency check subordersin release 4, note     sp     priority short text1035428 -      3 /sapapo/delete_lc_anchors, note     sp     priority short text1074340 -      3 upgrade, dp data only961872   12     4 upgrade analysis program, upgrade743834  info     upgrade - /sapapo/om17731099   2     4 upgrade, delivery schedule lines748039   3     4 /sapapo/delete_lc_anchors, dp data1035428 -      3 /sapapo/delete_lc_anchors, dp data only953030            2 upgrade, active time series871254   10     4 analysis, /sapapo/om_check_activities750727  21/28  3 enhanced check
Related Notes : 
       
| 1074340 | Upgrade to SCM 4.1 only with DP data | 
| 1064891 | /SAPAPO/DELETE_LC_ANCHORS during upgrade or download/upload | 
| 1035428 | /SAPAPO/DELETE_LC_ANCHORS may not run during upgrade | 
| 977717 | Upgrading a system with DP data only | 
| 974572 | Missing ORDKEY entries during upgrade | 
| 961872 | Upgrade analysis program: Recreation for tracing | 
| 953030 | Upgrade to 4.1: fixed pegging on negative stocks | 
| 948083 | Upgrade SCM: External constraints not complete | 
| 931779 | Upgrade: Error in /SAPAPO/OM_FIX_PEGGING_CHANGE | 
| 919315 | Upgrade: Duplicate constraints | 
| 918238 | Check on invalid secondary resources | 
| 918146 | Upgrading to 4.1 - /SAPAPO/PEGKEY incorrectly initialized | 
| 917248 | Product View : Orders not displayed in the Elements tab | 
| 916054 | OM17: GETWA_NOT_ASSIGNED, /SAPAPO/SAPLMC01_R05 | 
| 915365 | liveCache problems after converting to SCM 4.1 | 
| 909411 | Traffic light for Customizng clients with active time series | 
| 883807 | Link to "Analysis of delayed requests" | 
| 883497 | The creation of planning objects in the liveCache fails | 
| 878167 | Many requests missing when upgrading from Release 3.x | 
| 871254 | Analysis of delayed requests | 
| 854162 | Comparison after upgrade from 30 to 41 is too strict | 
| 848569 | Upgrade: Return code 315 when uploading liveCache data | 
| 847492 | COMPUTE_BCD_OVERFLOW for /SAPAPO/OM_LC_UPGRADE_41 | 
| 846953 | RPM: if RPM is not active, it must not be error message | 
| 809504 | Implementing notes for section C | 
| 808500 | /sapapo/upgrade_lc_anchors does not work | 
| 796317 | Extended check in /sapapo/om_check_activities | 
| 779349 | Short dump during upgrade of liveCache data | 
| 770142 | Upgrade from 3.x to 4.x: Comparison | 
| 767501 | Upgrade 3.x-->4.1: Improved log output when an error occurs | 
| 765108 | Upgrade 3.x-->4.x: Compare with sched. agr.schedule lines | 
| 757196 | Correction: Extended check in /sapapo/om_check_activities | 
| 750727 | Extended check in /sapapo/om_check_activities | 
| 748039 | /sapapo/delete_lc_anchors in the upgrade | 
| 747060 | Enhanced check in /sapapo/om_check_activities | 
| 744043 | Enhanced check in /sapapo/om_check_activities | 
| 743834 | Upgrade - /sapapo/om 17 | 
| 731099 | Upgrade from 3.x to 4.x: Comparison | 
| 728288 | Integrated consistency check for suborders | 
| 684406 | Additional information on upgrading to SAP SCM 4.1 |