SAP Knowledge Base Article - Preview

1592158 - Please assure you have configured the RFC Connections properly: SAP JCo error


  • The user creates a Java application which connects to the backend server using JCo destinations and it fails with the below error:

" modelimpl.dynamicrfc.WDDynamicRFCExecute Exception caused by: exceptions. WDRuntimeException: Accessing System <SID1> is not possible because RFC Metadata was retrieved using System <SID2>. Please assure you have configured the RFC Connections properly. A Server restart may be necessary!"



  • Release Independent
  • SAP NetWeaver


SAP NetWeaver all versions ; SAP Process Integration all versions ; SAP Solution Manager all versions


SLD connection 859950  , KBA , BC-WD-JAV , WebDynpro Java , BC-MID-CON-JCO , Java-Connector , Problem

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