How To Fix LOP128 - Field &1 is not part of structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: LOP - Logistical contract options

• Message number: 128

• Message text: Field &1 is not part of structure &2

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 LOP128 - Field &1 is not part of structure &2 ?

  The SAP error message LOP128, which states "Field &1 is not part of structure &2," typically occurs in the context of data processing or configuration within SAP, particularly in logistics or inventory management modules. This error indicates that a specific field (denoted as &1) is being referenced or used in a way that is not valid because it does not exist in the specified structure (denoted as &2).
  Causes:
  
  Field Mismatch: The field being referenced does not exist in the specified structure. This could be due to a typo or an incorrect field name.
  Configuration Issues: Changes in the data structure or configuration settings may have led to the field being removed or renamed.
  Custom Development: If there are custom programs or enhancements, they may be referencing fields that are no longer valid.
  Data Model Changes: Updates or changes in the underlying data model or database structure can lead to this error if the code is not updated accordingly.
  
  Solutions:
  
  Check Field Name: Verify that the field name (&1) is correctly spelled and exists in the structure (&2). You can do this by checking the data dictionary (SE11) for the structure.
  Review Configuration: If the error is related to a configuration setting, review the relevant configuration settings in the SAP system to ensure that all necessary fields are included.
  Update Custom Code: If there are custom programs or enhancements, review the code to ensure that it is referencing the correct fields. Update the code if necessary.
  Consult Documentation: Check any recent changes or updates in the SAP system that might have affected the data structure. This could include notes from SAP or documentation related to system upgrades.
  Debugging: If the error occurs during a specific transaction or process, use the debugging tools in SAP to trace the execution and identify where the invalid field reference is occurring.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to investigate the structures and fields involved.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and the solutions they implemented.
  
  By following these steps, you should be able to identify the cause of the LOP128 error and implement a suitable solution.