How To Fix /SCWM/LK218 - Mapping of logical system &1 to business system is not unique and failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/LK -

• Message number: 218

• Message text: Mapping of logical system &1 to business system is not unique and failed

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SCWM/LK218 - Mapping of logical system &1 to business system is not unique and failed ?

  The SAP error message /SCWM/LK218 Mapping of logical system &1 to business system is not unique and failed typically occurs in the context of SAP Extended Warehouse Management (EWM) when there is an issue with the mapping of logical systems to business systems. This error indicates that the system has found multiple entries for the same logical system, which leads to ambiguity in the mapping process.
  Cause:
  
  Duplicate Entries: The primary cause of this error is the existence of multiple entries in the mapping table for the same logical system. This can happen if the configuration was not done correctly or if there were changes made to the system that were not properly reflected in the mapping.
  Incorrect Configuration: If the logical system is not correctly configured in the system landscape, it can lead to this error.
  Transport Issues: If changes were transported from one system to another, and the mapping was not consistent across systems, it could lead to this error.
  
  Solution:
  
  
  Check Mapping Configuration:
  
  Go to the transaction code SPRO and navigate to the relevant configuration for EWM.
  Check the mapping of logical systems to business systems in the configuration settings. Ensure that each logical system is mapped to a unique business system.
  
  
  
  Remove Duplicates:
  
  If you find multiple entries for the same logical system, you need to remove or correct the duplicates. Ensure that each logical system is only mapped to one business system.
  
  
  
  Consistency Check:
  
  Perform a consistency check across your systems to ensure that the logical system and business system mappings are consistent. This may involve checking the configuration in both the source and target systems.
  
  
  
  Transport Management:
  
  If the issue arose after a transport, check the transport logs to see if there were any errors during the transport process. You may need to re-transport the correct configuration.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration to ensure that the error no longer occurs. You can do this by trying to execute the process that triggered the error initially.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO for configuration, SE11 for data dictionary, and SE16 for table display.
  Tables: The mapping is usually stored in specific tables related to EWM configuration. You may want to check tables like /SCWM/T_LG_SYS or similar to see the mappings.
  Documentation: Refer to SAP Help documentation for Extended Warehouse Management for detailed guidance on configuration and troubleshooting.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who specializes in EWM for further assistance.