Solution : https://service.sap.com/sap/support/notes/161706 (SAP Service marketplace login required)
Key words : 
additional key words move-, user exit exit_saplec50_001, business partner, customer enhancement, program error, /ccs release 4, processing, prerequisites
Related Notes : 
       
| 161749 | Collective note for IS-U/CCS 1.2 - add-on patch 008 |