Solution : https://service.sap.com/sap/support/notes/95057 (SAP Service marketplace login required)
Key words :
/general/r3server/abap/note, relid vareport <reportname>variant &, case start report rsvarina, additional key words background, automatically created variant names, varinumnumid vjreport <reportname>, background execution fails, field varinum-vnumber, automatically created variants, program <reportname> starting
Related Notes :
303007 | CC-ADMIN: Variant for client copy scheduling |
41475 | CC-INFO: Copying report variants between clients |