How To Fix /SCWM/RFID031 - HU &1 cannot be unloaded since no EPC exists for it

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/RFID -

• Message number: 031

• Message text: HU &1 cannot be unloaded since no EPC exists for it

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/RFID031 - HU &1 cannot be unloaded since no EPC exists for it ?

  The SAP error message /SCWM/RFID031 HU &1 cannot be unloaded since no EPC exists for it typically occurs in the context of handling units (HUs) in the SAP Extended Warehouse Management (EWM) system, particularly when dealing with RFID (Radio Frequency Identification) technology. This error indicates that the handling unit (HU) you are trying to unload does not have an associated EPC (Electronic Product Code) in the system.
  Cause:
  
  Missing EPC: The most common cause of this error is that the handling unit (HU) does not have an EPC assigned to it. This can happen if the HU was created without proper RFID tagging or if the EPC data was not correctly captured during the inbound process.
  Data Synchronization Issues: There may be issues with data synchronization between the RFID system and the SAP EWM system, leading to missing or incorrect EPC information.
  Incorrect Configuration: The system may not be configured correctly to handle RFID data, leading to issues in recognizing the EPC for the handling unit.
  
  Solution:
  
  Check EPC Assignment: Verify if the handling unit has an EPC assigned to it. You can do this by checking the HU details in the SAP EWM system. If the EPC is missing, you may need to reassign or create the EPC for the HU.
  Reprocess the HU: If the HU was created without an EPC, you may need to reprocess the HU to ensure that it is properly tagged with an EPC. This may involve re-scanning the HU with the RFID reader.
  Review Inbound Processes: Check the inbound processes to ensure that the EPC is being captured correctly when HUs are created. This may involve reviewing the configuration of the RFID system and ensuring that it is integrated properly with SAP EWM.
  Consult Documentation: Refer to SAP documentation or notes related to RFID and EWM for any specific configurations or troubleshooting steps that may apply to your version of the software.
  Contact Support: If the issue persists, consider reaching out to SAP support for assistance, especially if you suspect a bug or a deeper configuration issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  EWM Configuration: Review the configuration settings for RFID integration in SAP EWM to ensure that all necessary parameters are set correctly.
  User Training: Ensure that users handling the RFID processes are adequately trained on how to properly create and manage handling units with EPCs.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.