How To Fix SWF_RUN645 - Attempt to transfer data from event to wait step failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 645

• Message text: Attempt to transfer data from event to wait step failed

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 SWF_RUN645 - Attempt to transfer data from event to wait step failed ?

  The SAP error message SWF_RUN645, which states "Attempt to transfer data from event to wait step failed," typically occurs in the context of SAP Business Workflow. This error indicates that there was an issue when trying to pass data from an event to a wait step in a workflow process. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Event Not Triggered Properly: The event that is supposed to trigger the wait step may not have been raised correctly or may not contain the expected data.
  Data Structure Mismatch: The data structure expected by the wait step may not match the data being sent from the event. This can happen if there are changes in the workflow definition or if the event data has been modified.
  Workflow Instance Issues: There may be issues with the specific workflow instance, such as it being in an inconsistent state or having been terminated unexpectedly.
  Authorization Issues: The user or system may not have the necessary authorizations to access the data being transferred.
  Configuration Errors: There may be configuration issues in the workflow settings or in the event linkage.
  
  Solutions:
  
  Check Event Triggering: Ensure that the event is being triggered correctly. You can use transaction SWEL (Event Log) to check if the event was raised and if it contains the expected data.
  Verify Data Structures: Review the data structures involved in the event and the wait step. Ensure that they match and that all required fields are populated correctly.
  Review Workflow Definition: Check the workflow definition in transaction SWDD (Workflow Builder) to ensure that the event and wait step are configured correctly.
  Check Workflow Instance: Use transaction SWI1 (Work Item Selection) to find the specific workflow instance and check its status. If it is in an error state, you may need to restart or reprocess it.
  Authorization Check: Ensure that the user or system has the necessary authorizations to execute the workflow and access the data.
  Debugging: If the issue persists, consider debugging the workflow to trace the execution and identify where the failure occurs.
  
  Related Information:
  
  Transaction Codes:
  
  SWDD: Workflow Builder
  SWEL: Event Log
  SWI1: Work Item Selection
  SWI2_FREQ: Work Item Selection with Frequency
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message. You can search for notes in the SAP Support Portal.
  Documentation: Review SAP documentation on workflows for best practices and troubleshooting tips.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or Workflow team for further assistance, as they may have more insights into the specific configuration and setup of your SAP environment.