1905425 - Severe error(s) occured in phase MAIN_SHDIMP/SUBMOD_CP2SHD/SHADOW_NACT_RECP!

• During an upgrade Software Update Manager (SUM) stops on phase SHADO_NACT_RECP with an error.
• The error message in SUM is similar to;
  
  Sever error(s) occurred in phase MAIN_SHDIMP/SUBMOD_CP2SHD/SHADOW_NACT_RECP!
  
  ERROR:
  Detected the following errors due to error summary in <path to>/SUM/abap/NTSHDCP.ELG
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  CPSHANT and RETURN CODE in PN500826.<SID>
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  3 ETP399  protocol output to file      = yes, /sapinstall/SUM/abap/tmp/PN500826.<SID>
  3 ETP301 ----------------------------------------------------------------------
  3 ETP399Xcp nt "/GC1/TOBJTYPET":
  3 ETP399 ntab export without TOUCH dependant objects
  2 ETP399  --------------- DB-ROLLBACK() ---------------
  2AETP399XWrite table "/GC1/TOBJTYPET~               ": pgntab call: SQL error.
  3 ETP399X --------------- DB-COMMIT() ---------------
  3 ETP399Xcp nt "/GC1/TTECHTYPET":
  3 ETP399 ntab export without TOUCH dependant objects
  2 ETP399  --------------- DB-ROLLBACK() ---------------
  2AETP399XWrite table "/GC1/TTECHTYPET~              ": pgntab call: SQL error.
  3 ETP399X --------------- DB-COMMIT() ---------------

Oracle DB

extent, table space, , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem