2950420 - SUM phase PREP_CONFIGURATION/BATCHCHK_IM: Last error code set is: RFC system <SID> nr <INS> function 'SUBST_START_BATCHJOB'

• During an upgrade on Software Update Manager (SUM), the following error can be seen in phase PREP_CONFIGURATION/BATCHCHK_IMP: 
  
  SAPup.log
  

  CURRENTPHASE PREP_CONFIGURATION/BATCHCHK_IMP
  ...started at <Date><Time>
  # Using phase log file 'BATCHCHK_IMP.LOG'.
  ...finished at <Date><Time> with status ABORTED.
  # Error message set: 'RFC system <SID> nr <Instance #> function 'SUBST_START_BATCHJOB'
  RFC failed with code 5 key NO_BATCH_SERVICE:
  ID:PO Type:E Number:238'
  ...begin dialog at <Date><Time>
  
  
  

• Running the following command shows the output:
  

  niping -v -H <virtual_hostname>

  Hostname/Nodeaddr verification:
  ===============================
  
  Hostname of local computer: <virtual_hostname> (NiMyHostName)

  Lookup of hostname: <virtual_hostname> (NiHostToAddr)
  --> IP-Addr.: <IP_address>

  Lookup of IP-Addr.: <IP_address> (NiAddrToHost)
  --> Hostname: <wrong virtual_hostname>

  The wrong hostname is returned after a lookup of the IP address.

 Software Update Manager (SUM).

Hostname resolution, SAPLOCALHOST, SM51, , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem