How To Fix LMON009 - Error in definitions of object class &1: object structure is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: LMON - Monitor messages

• Message number: 009

• Message text: Error in definitions of object class &1: object structure is invalid

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LMON009 - Error in definitions of object class &1: object structure is invalid ?

  The SAP error message LMON009 indicates that there is an issue with the definitions of an object class in the system, specifically that the object structure is invalid. This error typically arises in the context of SAP Logistics and Warehouse Management (WM) or when dealing with object classes in the SAP system.
  Cause:
  The error can be caused by several factors, including:
  
  Incorrect Object Class Definition: The object class may not be defined correctly in the system, leading to inconsistencies.
  Missing or Incomplete Configuration: Required configurations for the object class may be missing or incomplete.
  Data Inconsistencies: There may be inconsistencies in the data related to the object class, such as missing entries in the relevant tables.
  Transport Issues: If the object class was transported from another system, there may have been issues during the transport process that led to an incomplete or invalid definition.
  
  Solution:
  To resolve the LMON009 error, you can follow these steps:
  
  
  Check Object Class Definition:
  
  Go to the transaction code SPRO (SAP Project Reference Object) and navigate to the relevant configuration for the object class.
  Verify that the object class is defined correctly and that all necessary fields are filled out.
  
  
  
  Review Configuration:
  
  Ensure that all related configurations are complete. This may include checking settings in the Warehouse Management module or other relevant areas.
  
  
  
  Data Consistency Check:
  
  Use transaction codes like SE11 (Data Dictionary) to check the relevant tables for the object class and ensure that all necessary entries exist.
  You can also use transaction SE38 to run reports that check for inconsistencies in the data.
  
  
  
  Transport Logs:
  
  If the object class was recently transported, check the transport logs for any errors or warnings that may indicate what went wrong during the transport process.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific object class you are working with. There may be specific guidelines or known issues documented by SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message details and any steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO, SE11, and SE38 for configuration and data checks.
  SAP Notes: Search for SAP Notes related to LMON009 or the specific object class you are dealing with. SAP Notes often contain solutions for known issues.
  Community Forums: Check SAP Community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the LMON009 error in your SAP system.