Solution : https://service.sap.com/sap/support/notes/1340852 (SAP Service marketplace login required)
Key words : 
raise event panic    exporting im_level    = cl_mmpur_constants=>level_1, raise event panic    exporting im_continue = cl_mmpur_constants=>, dependent purchasing organization data, archived purchasing organization data, existing purchasing organization data, individual data records occurred, elseif sy-subrc eq 2, system issues contradictory success, im_level = cl_mmpur_constants=>level_1, issues incorrect messages objects
Related Notes : 
       
| 1325863 | 'UNCAUGHT_EXCEPTION', while executing archiving in test mode | 
| 976264 | Archiving enhancements in purchasing for ERP 2005 |