How To Fix MSG_CL_ER164 - Invalid update: &1 may not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 164

• Message text: Invalid update: &1 may not be changed

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 MSG_CL_ER164 - Invalid update: &1 may not be changed ?

  The SAP error message MSG_CL_ER164 with the description "Invalid update: &1 may not be changed" typically occurs in the context of change requests or updates in SAP systems, particularly when dealing with classification data or master data. This error indicates that the system is trying to modify a field or attribute that is not allowed to be changed due to certain constraints or settings.
  Cause:
  
  Field Restrictions: The field or attribute you are trying to change is set as non-changeable in the system configuration. This could be due to the field being part of a classification system where certain attributes are locked after creation.
  Status of the Object: The object you are trying to update may be in a status that does not allow changes. For example, it could be in a completed or archived state.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the specified field or object.
  Custom Logic: There may be custom code (user exits, BAdIs, etc.) that restricts changes to certain fields based on business logic.
  
  Solution:
  
  Check Field Configuration: Review the configuration of the field in the classification or master data settings to determine if it is indeed set as non-changeable. If it needs to be changeable, you may need to adjust the configuration.
  Review Object Status: Check the status of the object you are trying to update. If it is in a status that does not allow changes, you may need to change its status or create a new object.
  User Authorizations: Ensure that the user attempting to make the change has the necessary authorizations. You may need to consult with your SAP security team to verify and adjust authorizations if needed.
  Custom Logic Review: If there is custom logic in place, review it to understand why the change is being blocked. You may need to modify the logic if it is too restrictive.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module you are working with for any additional insights or known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number or related keywords in the SAP Support Portal.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to investigate the underlying data structures and logic.
  Debugging: If you have access, you can debug the process to see where the error is being triggered and gather more context about the data being processed.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support or your internal SAP team for further assistance.