How To Fix CB401 - Error while displaying allowed values

SAP Error Message - Details

• Message type: E = Error

• Message class: CB - PP-PI-PMA: Dialog Messages for Process Management

• Message number: 401

• Message text: Error while displaying allowed values

What causes this issue?

When the permitted values were edited for display, an internal error
occurred. The values are not displayed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

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Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CB401 - Error while displaying allowed values ?

  The SAP error message CB401, which states "Error while displaying allowed values," typically occurs in the context of using the SAP system, particularly when dealing with characteristics and values in the context of classification or variant configuration.
  Cause:
  The CB401 error can arise due to several reasons, including:
  
  Missing or Incomplete Data: The characteristic or value you are trying to display may not have been properly defined or may be missing in the system.
  Authorization Issues: The user may not have the necessary authorizations to view the allowed values for the characteristic.
  Configuration Issues: There may be issues with the configuration of the characteristics or the classes they belong to.
  System Errors: There could be temporary system issues or inconsistencies in the database that prevent the allowed values from being displayed.
  
  Solution:
  To resolve the CB401 error, you can try the following steps:
  
  
  Check Characteristic Definition:
  
  Go to the transaction code CT04 (for characteristics) and verify that the characteristic is correctly defined and has allowed values assigned to it.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the characteristics and their values. You can check this in the user roles and profiles.
  
  
  
  Check Configuration:
  
  If the characteristic is part of a class, ensure that the class is correctly configured and that the characteristic is assigned to the class properly. You can use transaction code CL02 to check class definitions.
  
  
  
  Data Consistency Check:
  
  Run a consistency check on the classification data to identify any inconsistencies. You can use transaction code CL20N for this purpose.
  
  
  
  System Logs:
  
  Check the system logs (transaction code SM21) for any related error messages that might provide more context about the issue.
  
  
  
  Recreate the Characteristic:
  
  If the characteristic is corrupted or misconfigured, consider deleting and recreating it, ensuring that all necessary values are correctly assigned.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP support for further assistance, especially if it appears to be a system-related issue.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CT04: Create/Change Characteristic
  CL02: Change Class
  CL20N: Class Management
  SM21: System Log
  
  
  Documentation: Refer to SAP Help Portal for detailed documentation on characteristics and classification.
  User Forums: Check SAP Community forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the CB401 error in your SAP system.