How To Fix CMM_MEV_GEN_WL021 - Enter a valid package size

SAP Error Message - Details

• Message type: E = Error

• Message class: CMM_MEV_GEN_WL - Period-End Valuation: Worklist

• Message number: 021

• Message text: Enter a valid package size

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 CMM_MEV_GEN_WL021 - Enter a valid package size ?

  The SAP error message CMM_MEV_GEN_WL021 ("Enter a valid package size") typically occurs in the context of handling materials, especially when dealing with packaging or logistics processes in SAP. This error indicates that the system expects a valid package size to be entered, but the input provided does not meet the required criteria.
  Cause:
  
  Invalid Input: The package size entered may not conform to the expected format or range defined in the system.
  Missing Configuration: The material master or packaging specifications may not be properly configured, leading to the system not recognizing the input.
  Data Type Mismatch: The input might be of the wrong data type (e.g., entering a string instead of a number).
  Unit of Measure Issues: The unit of measure associated with the package size may not be compatible or correctly defined.
  
  Solution:
  
  Check Input: Ensure that the package size you are entering is a valid numerical value and falls within the acceptable range defined in the system.
  Review Material Master Data: Go to the material master record and check the packaging data. Ensure that the package sizes are defined correctly.
  Configuration Settings: If you have access, check the configuration settings related to packaging in the SAP system. This may involve looking at the relevant customizing settings in SPRO.
  Unit of Measure: Verify that the unit of measure for the package size is correctly defined and matches the expected values in the system.
  Consult Documentation: Refer to SAP documentation or help files for specific details on the expected format and values for package sizes.
  Error Logs: Check for any additional error logs or messages that may provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM02 (Change Material) or MM03 (Display Material) to review and edit material master data.
  SAP Notes: Look for relevant SAP Notes that may address known issues or provide patches related to this error message.
  User Roles: Ensure that you have the necessary permissions to make changes to material master data or configuration settings.
  Testing: After making changes, perform tests to ensure that the error does not recur and that the system behaves as expected.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in materials management or logistics within SAP.