How To Fix SWF_EVT020 - Synchronous processing for receiver type & not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EVT - Messages from Event Manager

• Message number: 020

• Message text: Synchronous processing for receiver type & not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_EVT020 - Synchronous processing for receiver type & not supported ?

  The SAP error message SWF_EVT020 indicates that synchronous processing is not supported for the specified receiver type in the context of workflow events. This typically occurs when a workflow is trying to send an event to a receiver that does not support synchronous processing.
  Cause:
  
  Receiver Type: The error usually arises when the workflow is configured to send an event to a receiver type that is not designed to handle synchronous events. Common receiver types include business objects, function modules, or other workflow tasks.
  Configuration Issues: There may be a misconfiguration in the workflow definition or the event linkage, leading to an attempt to process an event synchronously when it should be asynchronous.
  System Limitations: Some receiver types inherently do not support synchronous processing due to their design or the way they are implemented in the system.
  
  Solution:
  
  Check Receiver Type: Review the workflow definition and identify the receiver type that is causing the issue. Ensure that it is capable of handling synchronous events.
  Change Event Processing: If the receiver type does not support synchronous processing, consider changing the event processing to asynchronous. This can often be done by modifying the workflow configuration to use an asynchronous event.
  Modify Workflow: If necessary, modify the workflow to ensure that it uses appropriate receiver types that support synchronous processing, or adjust the workflow logic to accommodate asynchronous processing.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the receiver types and their capabilities regarding synchronous and asynchronous processing.
  Testing: After making changes, thoroughly test the workflow to ensure that it functions as expected without triggering the error.
  
  Related Information:
  
  Workflow Configuration: Familiarize yourself with the workflow configuration in SAP, including how to define events and link them to appropriate receivers.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling workflow events.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered and resolved similar issues.
  Transaction Codes: Use transaction codes like SWDD (Workflow Builder) to analyze and modify workflows, and SWI1 (Work Item Selection) to monitor workflow instances.
  
  By following these steps, you should be able to resolve the SWF_EVT020 error and ensure that your workflow processes events correctly.