/CUM/MSG423 - The entry & is not a valid external number for this design type

SAP Error Message - Details

• Message type: E = Error

• Message class: /CUM/MSG -

• Message number: 423

• Message text: The entry & is not a valid external number for this design type

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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AnswerBot

• What is the cause and solution for SAP error message /CUM/MSG423 - The entry & is not a valid external number for this design type ?

  The SAP error message /CUM/MSG423 The entry & is not a valid external number for this design type typically occurs in the context of SAP's Classification and Variant Configuration (CVC) functionalities. This error indicates that the system is unable to recognize the external number (which could be a material number, configuration number, or similar identifier) that you are trying to use for a specific design type.
  Causes:
  
  Invalid External Number: The external number you are trying to use does not exist in the system or is not valid for the specified design type.
  Incorrect Configuration: The design type may not be correctly configured to accept the external number you are providing.
  Data Inconsistency: There may be inconsistencies in the master data or classification data that prevent the system from recognizing the external number.
  Authorization Issues: The user may not have the necessary authorizations to access the data related to the external number.
  
  Solutions:
  
  Verify the External Number: Check if the external number you are using is correct and exists in the system. You can do this by searching for the number in the relevant transaction (e.g., MM03 for materials).
  Check Design Type Configuration: Ensure that the design type you are using is correctly set up to accept the external number. This may involve checking the configuration settings in the classification system.
  Review Master Data: Look for any inconsistencies in the master data related to the external number. Ensure that all necessary data is correctly maintained.
  Authorization Check: Verify that you have the necessary authorizations to access the data related to the external number. If not, contact your SAP security team to obtain the required permissions.
  Consult Documentation: Refer to SAP documentation or help resources for more specific guidance related to the error message and the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use transaction codes like MM03 (Display Material), CL03 (Display Class), or CU50 (Configuration Profile) to investigate the issue further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  Support: If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with SAP experts for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.