How To Fix LMON008 - Error in definitions of object class &1: object structure is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: LMON - Monitor messages

• Message number: 008

• Message text: Error in definitions of object class &1: object structure is not defined

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 LMON008 - Error in definitions of object class &1: object structure is not defined ?

  The SAP error message LMON008 indicates that there is an issue with the definitions of an object class in the SAP system, specifically that the object structure is not defined. This error typically arises in the context of SAP Logistics or Warehouse Management (WM) when the system is unable to find the necessary definitions for a specific object class.
  Cause:
  
  Missing Object Structure: The object structure for the specified object class is not defined in the system. This could happen if the object class was not properly configured or if it was deleted.
  Configuration Issues: There may be issues in the configuration settings related to the object class in the relevant customizing transactions.
  Transport Issues: If the object class was recently transported from another system, the transport might not have included all necessary components.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the object structure.
  
  Solution:
  
  
  Check Object Structure Definition:
  
  Go to the relevant customizing transaction (e.g., SPRO) and navigate to the area where the object class is defined.
  Verify that the object structure for the specified object class exists and is correctly defined.
  
  
  
  Recreate or Adjust Object Structure:
  
  If the object structure is missing, you may need to create it or adjust the existing definition to ensure it meets the requirements of the object class.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings related to the object class in the customizing transactions. Ensure that all necessary settings are in place.
  
  
  
  Transport Request:
  
  If the object class was recently transported, check the transport request to ensure that all necessary components were included. You may need to re-transport the missing components.
  
  
  
  Authorization Check:
  
  Ensure that the user encountering the error has the necessary authorizations to access the object structure. You may need to consult with your SAP security team to verify this.
  
  
  
  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 the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO (Customizing), SE11 (Data Dictionary), and SE80 (Object Navigator) to investigate the object class and its definitions.
  Documentation: Review SAP documentation related to the specific module (e.g., WM, Logistics) for more context on object classes and structures.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to identify the root cause of the LMON008 error and implement a solution to resolve it.