How To Fix /SCWM/MIGRATION_CUST304 - There is no mapping rule for LE-WM storage type &1 into EWM storage type

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MIGRATION_CUST -

• Message number: 304

• Message text: There is no mapping rule for LE-WM storage type &1 into EWM storage type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/MIGRATION_CUST304 - There is no mapping rule for LE-WM storage type &1 into EWM storage type ?

  The SAP error message /SCWM/MIGRATION_CUST304 indicates that there is no mapping rule defined for a specific LE-WM (Logistics Execution Warehouse Management) storage type into an EWM (Extended Warehouse Management) storage type. This error typically arises during the migration process from LE-WM to EWM, where the system is trying to map existing storage types from the legacy system to the new EWM structure.
  Cause:
  
  Missing Mapping Rule: The primary cause of this error is that the mapping rule for the specified LE-WM storage type (denoted by &1 in the error message) has not been defined in the system.
  Configuration Issues: There may be configuration issues in the EWM settings that prevent the mapping from being recognized.
  Data Migration Issues: If the migration process is not properly set up or if there are inconsistencies in the data, this error can occur.
  
  Solution:
  To resolve this error, you need to create a mapping rule for the specified LE-WM storage type to the corresponding EWM storage type. Here are the steps to do this:
  
  
  Access the Mapping Configuration:
  
  Go to the SAP Easy Access screen.
  Navigate to the EWM configuration area. This is usually found under Logistics Execution -> Extended Warehouse Management -> Settings -> Integration with WM -> Define Mapping Rules.
  
  
  
  Define Mapping Rules:
  
  In the mapping rules configuration, you will need to create a new entry for the LE-WM storage type that is causing the error.
  Specify the corresponding EWM storage type that it should map to.
  Ensure that all necessary fields are filled out correctly.
  
  
  
  Check Existing Mappings:
  
  Review existing mapping rules to ensure that there are no conflicts or missing entries that could lead to this error.
  
  
  
  Test the Configuration:
  
  After creating the mapping rule, test the migration process again to see if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to EWM and LE-WM integration for any specific requirements or additional configuration steps that may be necessary.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SPRO to access the configuration settings or SE11 to check the database tables related to storage types.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  EWM and WM Integration: Understanding the differences between EWM and LE-WM can help in properly configuring the mapping rules.
  
  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.