How To Fix IL849 - Location label changed by customer-defined program

SAP Error Message - Details

• Message type: E = Error

• Message class: IL - PM: ILOM - Functional Locations

• Message number: 849

• Message text: Location label changed by customer-defined program

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IL849 - Location label changed by customer-defined program ?

  The SAP error message IL849, which states "Location label changed by customer-defined program," typically occurs in the context of warehouse management or inventory management processes. This error indicates that a location label (which is a unique identifier for a storage location) has been modified by a custom program or user exit, and this change is not recognized by the standard SAP processes.
  Cause:
  
  Custom Development: The most common cause of this error is a custom program or enhancement that modifies the location label in a way that is not compatible with the standard SAP logic.
  Data Inconsistency: If the location label has been changed outside of the standard SAP transaction processes, it may lead to inconsistencies in the database.
  User Exits or BAdIs: If there are user exits or Business Add-Ins (BAdIs) implemented that alter the behavior of location labels, they may inadvertently cause this error.
  
  Solution:
  
  Review Custom Code: Check any custom programs, user exits, or BAdIs that interact with location labels. Ensure that they are correctly implemented and do not conflict with standard SAP processes.
  Debugging: Use the SAP debugger to trace the execution of the program that leads to this error. This can help identify where the location label is being changed and why it is causing an issue.
  Data Consistency Check: Run consistency checks on the relevant tables to ensure that the data related to location labels is consistent and valid.
  Revert Changes: If possible, revert any recent changes made to the location labels or the custom code that may have caused the issue.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LX01 (Display Warehouse Stocks), LX02 (Display Warehouse Stocks by Storage Type), and LT03 (Transfer Order) to understand how location labels are used in SAP.
  Documentation: Review SAP documentation related to Warehouse Management (WM) and Inventory Management (IM) for best practices on handling location labels.
  SAP Community: Engage with the SAP Community or forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.