How To Fix CN165 - Problem when reading the change number, date remains unchanged

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 165

• Message text: Problem when reading the change number, date remains unchanged

What causes this issue?

As you were selecting BOM items, you entered a change number for which
the systen could not find a validity date.

System Response

The original selection date remains unchanged.

How to fix this error?

Check whether the change number is active and whether it is valid for
BOMs. If necessary change the master record of the change number or use
another valid change number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN165 - Problem when reading the change number, date remains unchanged ?

  The SAP error message CN165, which states "Problem when reading the change number, date remains unchanged," typically occurs in the context of change management within SAP, particularly when dealing with change numbers in the context of production orders, project systems, or similar modules.
  Cause:
  
  
  Change Number Issues: The error often arises when there is a problem with the change number being referenced. This could be due to:
  
  The change number not being defined or activated.
  The change number being locked or not available for the current operation.
  The change number being incorrectly assigned or referenced in the transaction.
  
  
  
  Authorization Issues: The user may not have the necessary authorizations to read or modify the change number.
  
  
  Data Consistency: There may be inconsistencies in the data related to the change number, such as missing or incorrect entries in the database.
  
  
  System Configuration: Incorrect configuration settings in the system related to change management or project management could lead to this error.
  
  
  Solution:
  
  
  Check Change Number: Verify that the change number you are trying to use is valid and active. You can do this by:
  
  Navigating to the relevant transaction (e.g., CN21 for creating change numbers) and checking the status of the change number.
  Ensuring that the change number is not locked or inactive.
  
  
  
  Review Authorizations: Ensure that the user has the necessary authorizations to access and modify the change number. This can be checked in the user roles and profiles.
  
  
  Data Consistency Check: Perform a consistency check on the data related to the change number. This may involve:
  
  Running reports or transactions that can help identify inconsistencies.
  Checking for any missing entries in related tables.
  
  
  
  System Configuration: Review the configuration settings related to change management in SAP. This may involve:
  
  Consulting with your SAP Basis or configuration team to ensure that the settings are correct.
  Checking for any recent changes in configuration that might have affected the change number functionality.
  
  
  
  SAP Notes and Support: If the issue persists, check for any relevant SAP Notes that might address this specific error. You can search the SAP Support Portal for updates or patches that may resolve the issue.
  
  
  Consult Documentation: Review the SAP documentation related to change management and the specific transaction you are using to ensure that you are following the correct procedures.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN21 (Create Change Number), CN22 (Change Change Number), and CN23 (Display Change Number).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on change management processes and error handling.
  
  If the problem continues after trying these solutions, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.