Solution : https://service.sap.com/sap/support/notes/1051174 (SAP Service marketplace login required)
Key words :
symptom report umg_convert_spool creates backup copies, terms unicode reason, backup copies, spool requests, data converted, program error, support packages, umg_convert_spool, conversion, prerequisites
Related Notes :
| 1047561 | UMG_CONVERT_SPOOL: Repeated lines in lists |
| 901004 | Conversion of ABAP spool requests to Unicode. |