How To Fix MSG_CL_ER154 - Logical key(s) missing!

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 154

• Message text: Logical key(s) missing!

Self-Explanatory Message

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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 MSG_CL_ER154 - Logical key(s) missing! ?

  The SAP error message MSG_CL_ER154 ("Logical key(s) missing!") typically occurs in the context of classification in SAP, particularly when working with characteristics and classes in the Classification System. This error indicates that a logical key required for the operation is missing, which can prevent the system from processing the classification data correctly.
  Causes:
  
  Missing Logical Key: The logical key that is supposed to identify a class or characteristic is not provided or is incomplete.
  Incorrect Configuration: The configuration of the class or characteristics may not be set up correctly, leading to missing keys.
  Data Inconsistency: There may be inconsistencies in the data being processed, such as missing entries in the classification tables.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain classification data, leading to this error.
  
  Solutions:
  
  
  Check Class and Characteristic Configuration:
  
  Ensure that the class and characteristics are correctly defined in the system.
  Verify that all required fields are filled out and that the logical keys are correctly assigned.
  
  
  
  Review Data Entries:
  
  Check the data entries for the objects you are trying to classify. Ensure that all necessary logical keys are present.
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to review the class definitions.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the classification data to identify any missing or inconsistent entries.
  Use transaction code CL24 to check for inconsistencies in the classification data.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access and modify classification data.
  Check the user roles and authorizations in transaction code SU53 or SU01.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the program or transaction that is generating the error to identify the exact point of failure.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed information on classification and logical keys.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), CL03 (Display Class), and CL24 (Check Class).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.