How To Fix WM399 - No copy reference WLK2 for material &

SAP Error Message - Details

• Message type: E = Error

• Message class: WM - IS-R Assortments

• Message number: 399

• Message text: No copy reference WLK2 for material &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WM399 - No copy reference WLK2 for material & ?

  The SAP error message WM399 "No copy reference WLK2 for material &" typically occurs in the Warehouse Management (WM) module when the system is unable to find a copy reference for a specific material in the context of warehouse operations. This can happen during various processes, such as stock transfers, inventory management, or when trying to create a transfer order.
  Cause:
  
  Missing Copy Reference: The copy reference WLK2 is not defined for the material in question. This reference is necessary for the system to understand how to handle the material in the warehouse.
  Material Master Data Issues: The material may not be properly set up in the material master data, particularly in the Warehouse Management view.
  Configuration Issues: There may be configuration issues in the Warehouse Management settings that prevent the system from recognizing the copy reference.
  Inconsistent Data: There could be inconsistencies in the data related to the material, such as missing or incorrect entries in the relevant tables.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the Warehouse Management view. Ensure that the material is set up correctly and that all necessary fields are filled out.
  Verify that the material is assigned to the correct storage location and warehouse.
  
  
  
  Define Copy Reference:
  
  If the copy reference WLK2 is missing, you may need to define it. This can typically be done in the configuration settings for Warehouse Management.
  Use transaction code SPRO to access the configuration settings and navigate to the relevant section for defining copy references.
  
  
  
  Check Configuration:
  
  Review the configuration settings for Warehouse Management to ensure that all necessary settings are in place for the materials you are working with.
  Ensure that the relevant movement types and copy references are correctly configured.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the material and warehouse data to identify any discrepancies that may be causing the issue.
  Use transaction codes like LX02 or LX03 to check stock levels and ensure that the material is available in the expected storage locations.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed information on the specific error and potential fixes.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), SPRO (Customizing), LX02 (Stock Overview), LX03 (Stock Overview by Storage Type).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the WM399 error in SAP.