How To Fix LOP172 - No change log available for category &1

SAP Error Message - Details

• Message type: E = Error

• Message class: LOP - Logistical contract options

• Message number: 172

• Message text: No change log available for category &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 LOP172 - No change log available for category &1 ?

  The SAP error message LOP172 ("No change log available for category &1") typically occurs in the context of the Logistics Execution (LE) module, particularly when dealing with the handling of change logs for certain categories of data. This error indicates that the system is unable to find a change log for the specified category, which can hinder processes that rely on historical data or changes.
  Causes:
  
  Change Log Not Activated: The change log for the specific category (e.g., material movements, inventory changes) may not be activated in the system settings.
  Data Deletion: The change log data may have been deleted or purged, leading to the absence of records for the specified category.
  Configuration Issues: There may be configuration issues in the system that prevent the change log from being generated or accessed.
  Authorization Issues: The user may not have the necessary authorizations to access the change log data.
  
  Solutions:
  
  
  Activate Change Log:
  
  Check the configuration settings for the relevant category in the SAP system. Ensure that the change log is activated for the specific data category you are working with.
  This can typically be done in the customizing settings (transaction code SPRO) under the relevant module.
  
  
  
  Check Data Integrity:
  
  Verify if the change log data exists for the specified category. You can do this by checking the relevant tables (e.g., CDPOS, CDHDR) to see if there are any entries.
  If the data has been deleted, you may need to restore it from a backup if available.
  
  
  
  Review User Authorizations:
  
  Ensure that the user encountering the error has the necessary authorizations to access the change log data. This can be checked in the user roles and profiles.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates that resolve known issues related to change logs.
  
  
  
  System Logs and Traces:
  
  Review system logs and traces to gather more information about the error. This can provide insights into what might be causing the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the context in which it occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE16 (Data Browser), and SPRO (Customizing) to navigate through the system settings and data.
  Change Log Tables: Understand the structure of change log tables (e.g., CDPOS, CDHDR) to analyze the data and troubleshoot effectively.
  Documentation: Refer to SAP documentation and guides related to change logs and data management in the Logistics Execution module for more detailed information.
  
  By following these steps, you should be able to identify the cause of the LOP172 error and implement a suitable solution.