How To Fix SWF_RUN651 - CL_SWF_RUN_WORKFLOW_PROPERTIES: Error when writing buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 651

• Message text: CL_SWF_RUN_WORKFLOW_PROPERTIES: Error when writing buffer

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_RUN651 - CL_SWF_RUN_WORKFLOW_PROPERTIES: Error when writing buffer ?

  The SAP error message SWF_RUN651, which is associated with the class CL_SWF_RUN_WORKFLOW_PROPERTIES, indicates that there was an error when writing to a buffer during the execution of a workflow. This error can occur due to various reasons, and understanding the cause and potential solutions can help in resolving the issue.
  Possible Causes:
  
  Buffer Overflow: The buffer may be too small to accommodate the data being written to it, leading to an overflow error.
  Data Type Mismatch: There may be a mismatch in the expected data types when writing to the buffer.
  Memory Issues: Insufficient memory or resources available in the system can lead to this error.
  Workflow Configuration Issues: Incorrect configuration of the workflow or its components may lead to errors during execution.
  Authorization Issues: Lack of proper authorizations for the user executing the workflow can also cause this error.
  System Bugs: There may be bugs in the SAP system or specific patches that need to be applied.
  
  Solutions:
  
  Check Buffer Size: Ensure that the buffer size is adequate for the data being processed. You may need to increase the buffer size if it is too small.
  Review Data Types: Verify that the data types being written to the buffer match the expected types. Make necessary adjustments in the workflow or data mapping.
  Monitor System Resources: Check the system's memory and resource usage. If the system is low on resources, consider optimizing or increasing the available resources.
  Review Workflow Configuration: Go through the workflow configuration settings to ensure everything is set up correctly. Look for any inconsistencies or errors in the workflow definition.
  Check Authorizations: Ensure that the user executing the workflow has the necessary authorizations to perform the actions required by the workflow.
  Apply Patches: Check for any available patches or updates for your SAP system that may address known issues related to this error.
  Debugging: If you have access to the development environment, consider debugging the workflow to identify the exact point of failure and gather more information about the error.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions for this specific error.
  Transaction Codes: Use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Selection - Frequency) to analyze workflow instances and identify any problematic work items.
  Logs and Traces: Check the application logs (transaction SLG1) and workflow logs for more detailed error messages that can help pinpoint the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.