How To Fix WT233 - Error while starting RFC: Internal error has occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: WT - Retail: Replenishment

• Message number: 233

• Message text: Error while starting RFC: Internal error has occurred

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WT233 - Error while starting RFC: Internal error has occurred ?

  The SAP error message WT233: Error while starting RFC: Internal error has occurred typically occurs in the context of Workflow (WF) when the system tries to start a Remote Function Call (RFC) and encounters an internal problem.
  
  Cause
  
  Internal system error during RFC execution: The error indicates that an internal error occurred when the workflow runtime tried to start an RFC connection to execute a task or function module remotely.
  Possible reasons include:
  
  RFC destination is incorrectly configured or inactive.
  Network or communication issues between the SAP systems.
  Authorization problems for the user executing the RFC.
  Inconsistencies or bugs in the workflow runtime or RFC handling.
  System resource issues or dumps occurring during RFC start.
  Missing or incorrect function module or workflow task configuration.
  
  
  
  
  Solution
  
  
  Check RFC Destination:
  
  Go to transaction SM59.
  Verify the RFC destination used by the workflow.
  Test the connection to ensure it is active and reachable.
  Correct any configuration errors (e.g., target host, user, logon data).
  
  
  
  Check User Authorizations:
  
  Ensure the user executing the workflow has the necessary authorizations for RFC calls.
  Check roles and profiles assigned to the user.
  
  
  
  Review Workflow Logs:
  
  Use transaction SWI1 or SWI2_FREQ to check workflow logs.
  Identify the exact step or task causing the error.
  Look for additional error details or dumps.
  
  
  
  Check System Logs and Dumps:
  
  Use SM21 for system logs.
  Use ST22 to check for any short dumps related to the RFC or workflow.
  Analyze dumps for root cause.
  
  
  
  Check Network and System Connectivity:
  
  Ensure network connectivity between the systems involved in the RFC.
  Check firewall or network restrictions.
  
  
  
  Update or Patch System:
  
  If the error is caused by a known bug, check SAP Notes for relevant patches or corrections.
  Apply SAP Notes or Support Packages as recommended.
  
  
  
  Debugging:
  
  If necessary, debug the workflow runtime or RFC function module to identify the internal error.
  Use transaction SE37 to test the function module independently.
  
  
  
  
  Related Information
  
  SAP Notes: Search for notes related to WT233 or RFC errors in workflow.
  Transactions:
  
  SM59 – RFC Destinations
  SWI1 – Workflow Log
  SWI2_FREQ – Workflow Runtime Errors
  ST22 – ABAP Dumps
  SM21 – System Log
  
  
  Common SAP Forums and OSS Notes: Often provide solutions for specific scenarios causing WT233.
  Workflow Documentation: Understanding how workflows trigger RFCs can help in troubleshooting.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WT233: Error while starting RFC: Internal error has occurred
  
  
  Cause
  Internal error during RFC start due to config, authorization, network, or system issues
  
  
  Solution
  Check RFC destination (SM59), user authorizations, workflow logs (SWI1), system dumps (ST22), network connectivity, apply SAP Notes
  
  
  Related Info
  SAP Notes, workflow and RFC documentation, system logs, debugging tools
  
  
  
  
  If you provide more context (e.g., system landscape, workflow scenario, exact RFC destination), I can help with more targeted troubleshooting steps.