How To Fix SWF_EVT201 - Event placed in the buffer (event parameter '&')

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EVT - Messages from Event Manager

• Message number: 201

• Message text: Event placed in the buffer (event parameter '&')

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_EVT201 - Event placed in the buffer (event parameter '&') ?

  The SAP error message SWF_EVT201, which states "Event placed in the buffer (event parameter '&')", typically occurs in the context of SAP Workflow. This message indicates that an event has been triggered and is being buffered for processing. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Event Triggering: The error message indicates that an event has been triggered but cannot be processed immediately. This can happen if the workflow instance that is supposed to handle the event is not currently active or if there are no active workflows that can respond to the event.
  Buffering Mechanism: SAP uses a buffering mechanism to ensure that events are not lost. When an event is triggered, it is placed in a buffer until the appropriate workflow instance is available to process it.
  Workflow Configuration: There may be issues with the configuration of the workflow or the event linkage, which can prevent the event from being processed.
  
  Solution:
  
  Check Workflow Instances: Verify if there are any active workflow instances that should be processing the event. You can use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Overview) to check for active workflows.
  Event Linkage: Ensure that the event is correctly linked to the appropriate workflow. You can check the event linkage in the workflow definition using transaction SWDD (Workflow Builder).
  Event Handling: If the event is not being processed as expected, you may need to check the event handler configuration. Ensure that the event is correctly defined and that the workflow is set up to respond to it.
  Buffer Management: If the event remains in the buffer for an extended period, you may need to investigate the system's performance or any issues that might be causing delays in processing events.
  Monitoring and Logs: Use transaction SWI1 to monitor the workflow and check for any errors or issues in the workflow logs that might provide more context on why the event is not being processed.
  
  Related Information:
  
  Transaction Codes:
  
  SWDD: Workflow Builder - to create or modify workflows.
  SWI1: Work Item Selection - to view active work items and workflows.
  SWI2_FREQ: Work Item Overview - to get a detailed overview of work items.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to event buffering and processing.
  Documentation: Review SAP documentation on workflows and event handling for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or Workflow team for further investigation.