How To Fix /SCWM/WHO020 - Limits for number of HUs: maximum &1, current &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/WHO -

• Message number: 020

• Message text: Limits for number of HUs: maximum &1, current &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/WHO020 - Limits for number of HUs: maximum &1, current &2 ?

  The SAP error message /SCWM/WHO020 indicates that the number of Handling Units (HUs) has exceeded the defined limits in the system. This error typically occurs in the context of warehouse management, particularly when dealing with handling units in SAP Extended Warehouse Management (EWM).
  Cause:
  The error message /SCWM/WHO020 is triggered when the current number of handling units (HUs) exceeds the maximum limit set in the system. This can happen due to various reasons, such as:
  
  Configuration Limits: The maximum number of HUs allowed in a specific warehouse or storage type has been configured to a lower value than the current usage.
  System Constraints: The system may have constraints based on performance or design that limit the number of HUs that can be processed simultaneously.
  Data Migration or Bulk Operations: If there are bulk operations or data migrations, it may inadvertently create a large number of HUs, surpassing the configured limits.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the configuration settings in SAP EWM and check the maximum limits set for handling units in the relevant warehouse or storage type.
  You can find these settings in the Customizing (SPRO) under the Warehouse Management section.
  
  
  
  Increase Limits:
  
  If the current limit is too low for your operational needs, consider increasing the maximum number of HUs allowed. This can be done by adjusting the configuration settings.
  
  
  
  Review Current HUs:
  
  Analyze the current number of HUs in the system. If there are obsolete or unnecessary HUs, consider deleting or consolidating them to free up space.
  
  
  
  Monitor Usage:
  
  Implement monitoring to keep track of the number of HUs being created and used in the system to prevent future occurrences of this error.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to handling units and warehouse management for any specific recommendations or best practices.
  
  
  
  Contact SAP Support:
  
  If the issue persists or if you need further assistance, consider reaching out to SAP support for guidance tailored to your specific system configuration and usage.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SCWM/HU to manage handling units or /SCWM/PR for managing processes related to warehouse operations.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional insights into handling units and their limits.
  Performance Considerations: Be aware that increasing limits may have performance implications, so it’s essential to balance operational needs with system performance.
  
  By following these steps, you should be able to address the error message /SCWM/WHO020 effectively.