How To Fix /SCWM/ERPINTEGRATION121 - Error during mapping: ERP material &1 has been assigned twice

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/ERPINTEGRATION -

• Message number: 121

• Message text: Error during mapping: ERP material &1 has been assigned twice

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/ERPINTEGRATION121 - Error during mapping: ERP material &1 has been assigned twice ?

  The SAP error message /SCWM/ERPINTEGRATION121 indicates that there is a mapping issue related to the assignment of an ERP material in the SAP Extended Warehouse Management (EWM) system. Specifically, the error states that the ERP material has been assigned twice, which can lead to conflicts in data processing.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Duplicate Assignments: The same ERP material is assigned to multiple locations or warehouse processes, leading to ambiguity in data handling.
  Configuration Issues: There may be incorrect configurations in the mapping settings between the ERP and EWM systems.
  Data Consistency Issues: There might be inconsistencies in the master data between the ERP and EWM systems, such as duplicate entries in the material master.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Material Assignments:
  
  Go to the EWM system and check the assignments of the ERP material in question. Ensure that it is not assigned to multiple locations or processes simultaneously.
  Use transaction codes like /SCWM/MAT1 to view material assignments.
  
  
  
  Review Configuration:
  
  Verify the configuration settings for the integration between ERP and EWM. Ensure that the mapping rules are correctly defined and that there are no overlaps in assignments.
  Check the settings in the Customizing for EWM under the relevant sections for material management and integration.
  
  
  
  Data Cleanup:
  
  If you find duplicate entries in the material master, you may need to clean up the data. This could involve deleting or merging duplicate materials.
  Use transaction codes like MM03 to view material details and MM02 to make necessary changes.
  
  
  
  Reprocess the Data:
  
  After resolving the duplicate assignments or configuration issues, you may need to reprocess the data that triggered the error. This can often be done through the relevant inbound processing transactions in EWM.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to EWM and ERP integration for any specific guidelines or updates that may address this issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP support for further assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCWM/MAT1, /SCWM/PRT, and others that are used for material management in EWM.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Integration Settings: Review the integration settings between your ERP system (like SAP S/4HANA or SAP ECC) and EWM to ensure they are correctly configured.
  
  By following these steps, you should be able to identify and resolve the cause of the error message /SCWM/ERPINTEGRATION121.