Solution : https://service.sap.com/sap/support/notes/808500 (SAP Service marketplace login required)
Key words :
destination <sid>clnt<clnt> existsalternatively, loading master data, source code corrections, object /sapapo/upgrade_lc_anchors, /sapapo/upgrade_lc_anchors program, /sapapo/upgrade_lc_anchors, program terminates, /sapapo/om_lc_upgrade_41, planning versions, error message
Related Notes :
785223 | Loading the planning versions: Errors are ignored |
770673 | /SAPAPO/OM_LC_UPGRADE_41: Problems during the upgrade |