How To Fix 34N640 - Invisible flag for characteristic "&2" in "&1"

SAP Error Message - Details

• Message type: E = Error

• Message class: 34N - Messages for AP Configuration Engine

• Message number: 640

• Message text: Invisible flag for characteristic "&2" in "&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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 34N640 - Invisible flag for characteristic "&2" in "&1" ?

  The SAP error message "34N640 Invisible flag for characteristic '&2' in '&1'" typically indicates an issue related to the visibility settings of a characteristic in the context of SAP's classification system. This error arises when a characteristic is marked as "invisible" in a classification system, which means it cannot be displayed or used in certain contexts, such as in a classification view or when creating a new classification.
  Cause:
  
  Invisible Characteristic: The characteristic specified in the error message is set to "invisible" in the classification settings. This can happen if the characteristic is not intended to be used in certain contexts or if it has been configured incorrectly.
  Configuration Issues: There may be issues in the configuration of the classification system or the specific class where the characteristic is being used.
  Data Inconsistencies: There might be inconsistencies in the data or settings related to the classification or characteristics.
  
  Solution:
  
  
  Check Characteristic Settings:
  
  Go to the transaction code CT04 (Characteristic Maintenance) in SAP.
  Enter the characteristic name (the value of &2 from the error message) and check its settings.
  Ensure that the "Invisible" flag is not set if you want the characteristic to be visible and usable.
  
  
  
  Modify Class Settings:
  
  If the characteristic is part of a class, go to transaction code CL02 (Class Maintenance).
  Check the class settings and ensure that the characteristic is correctly assigned and configured.
  
  
  
  Review Classification Configuration:
  
  Review the overall configuration of the classification system to ensure that all settings are correct and consistent.
  If necessary, consult with a functional consultant or SAP support for assistance in reviewing the configuration.
  
  
  
  Testing:
  
  After making changes, test the classification process again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CT04: Characteristic Maintenance
  CL02: Class Maintenance
  CL03: Display Class
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on characteristics and classes in the classification system.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support or a consultant who specializes in SAP classification and master data management.