How To Fix WRF_REF421 - Number of parallel tasks successful on first try: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 421

• Message text: Number of parallel tasks successful on first try: &1

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF421 - Number of parallel tasks successful on first try: &1 ?

  The SAP error message WRF_REF421, which states "Number of parallel tasks successful on first try: &1," typically occurs in the context of the SAP Retail module, particularly during processes that involve parallel processing of tasks, such as during the execution of mass changes or data uploads.
  
  Cause:
  The error message WRF_REF421 indicates that the system has attempted to execute a certain number of parallel tasks, but not all of them were successful on the first try. The &1 in the message represents the number of tasks that were successful. This can happen due to various reasons, including:
  
  System Resource Limitations: The system may not have enough resources (CPU, memory) to handle the number of parallel tasks being executed.
  Data Issues: There may be issues with the data being processed, such as invalid entries or data integrity problems.
  
  Configuration Issues: Incorrect configuration settings in the SAP system or in the specific module being used can lead