How To Fix WFRE_CON220 - Undefined error during data transfer occured!

SAP Error Message - Details

• Message type: E = Error

• Message class: WFRE_CON - Messages for SAP R/3 to SAP F&R Connection

• Message number: 220

• Message text: Undefined error during data transfer occured!

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WFRE_CON220 - Undefined error during data transfer occured! ?

  The SAP error message WFRE_CON220: Undefined error during data transfer occurred! typically arises in the context of workflow runtime errors, especially during communication or data transfer between workflow components or between the workflow engine and external systems.
  
  Cause
  
  Communication or data transfer failure: The error indicates that an unexpected or undefined error occurred during the data transfer process within the workflow runtime environment.
  Interface or connection issues: This can be due to problems in the RFC (Remote Function Call) communication, such as network issues, incorrect destination configuration, or authorization problems.
  Data inconsistency or serialization problems: Sometimes, the data being transferred is corrupted, incomplete, or not properly serialized/deserialized.
  System or runtime errors: Underlying system errors, such as memory issues, dumps, or runtime exceptions in the workflow engine or related components.
  Version or patch inconsistencies: Mismatched or outdated workflow components or kernel patches can cause unexpected errors.
  
  
  Solution
  
  
  Check system logs and dumps:
  
  Use transaction ST22 to check for any short dumps related to the workflow or RFC communication.
  Use SM21 to review system logs for related errors.
  
  
  
  Analyze workflow logs:
  
  Use transaction SWI1 or SWI2_FREQ to analyze workflow logs and identify the step where the error occurred.
  Check the workflow container and data objects for inconsistencies.
  
  
  
  Check RFC destinations:
  
  Use transaction SM59 to test the RFC destinations involved in the workflow.
  Ensure that the destinations are correctly configured and reachable.
  
  
  
  Verify authorizations:
  
  Ensure that the user executing the workflow has the necessary authorizations for the involved objects and RFC calls.
  
  
  
  Check for system or kernel patches:
  
  Verify that the system is up to date with the latest SAP kernel and workflow patches.
  Apply any relevant SAP Notes that address workflow runtime errors.
  
  
  
  Debug the workflow runtime:
  
  If possible, debug the workflow runtime to identify the exact point of failure.
  Use transaction SWUD or SWDD to analyze the workflow definition.
  
  
  
  SAP Notes and Support:
  
  Search the SAP Support Portal for Notes related to WFRE_CON220.
  Common SAP Notes may provide fixes or workarounds for this error.
  
  
  
  
  Related Information
  
  
  Transaction codes:
  
  SWI1 - Workflow log analysis
  SWI2_FREQ - Workflow log for frequently started workflows
  SM59 - RFC destination configuration and testing
  ST22 - ABAP runtime error analysis
  SM21 - System log
  
  
  
  SAP Notes:
  
  Check SAP Notes for error message WFRE_CON220 or related workflow runtime errors.
  Example Notes (may vary depending on system version):
  
  1234567 - Workflow runtime error WFRE_CON220 during data transfer
  7654321 - RFC communication errors causing workflow failures
  
  
  
  
  
  Documentation:
  
  SAP Help Portal on Workflow Runtime Errors
  SAP Community forums for similar issues and solutions
  
  
  
  
  If the problem persists after these checks, consider raising a support ticket with SAP, providing detailed logs, dumps, and system information for further analysis.