How To Fix /SCWM/MD128 - SCU &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MD -

• Message number: 128

• Message text: SCU &1 does not exist

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 /SCWM/MD128 - SCU &1 does not exist ?

  The SAP error message /SCWM/MD128 SCU &1 does not exist typically occurs in the context of SAP Extended Warehouse Management (EWM) when the system is unable to find a specific Stock Control Unit (SCU) that is referenced in a transaction or process. This error can arise due to various reasons, including data inconsistencies, missing master data, or incorrect configuration.
  Causes:
  
  Missing SCU: The specific Stock Control Unit (SCU) that is being referenced does not exist in the system.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the relevant tables.
  Incorrect Configuration: The configuration settings for the warehouse or the stock management might not be set up correctly.
  Master Data Issues: The material master or other related master data may not be properly maintained or may be missing.
  
  Solutions:
  
  
  Check SCU Existence:
  
  Verify if the SCU referenced in the error message actually exists in the system. You can do this by checking the relevant tables or using transaction codes like /SCWM/SCU to view existing SCUs.
  
  
  
  Review Master Data:
  
  Ensure that the material master data is complete and correctly maintained. Check if the material is set up for the relevant warehouse and that all necessary views are filled out.
  
  
  
  Data Consistency Check:
  
  Run consistency checks in the EWM system to identify any inconsistencies in the data. This can often be done through specific transaction codes or reports designed for data validation.
  
  
  
  Configuration Review:
  
  Review the configuration settings for the warehouse management system. Ensure that all necessary settings related to stock management and SCUs are correctly configured.
  
  
  
  Recreate SCU:
  
  If the SCU is indeed missing and should exist, you may need to recreate it. This can involve creating a new SCU entry in the system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to EWM and SCUs for any specific guidance or known issues that might relate to your situation.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. They may provide insights or patches if it’s a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/SCU, /SCWM/PRD, and others that may help in managing and troubleshooting SCUs.
  SAP Notes: Check SAP Notes for any updates or patches related to this error message.
  EWM Documentation: Review the SAP EWM documentation for best practices in managing stock and SCUs.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.