How To Fix /SCWM/RF_EN090 - You can only enter a difference once

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/RF_EN -

• Message number: 090

• Message text: You can only enter a difference once

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/RF_EN090 - You can only enter a difference once ?

  The SAP error message /SCWM/RF_EN090 ("You can only enter a difference once") typically occurs in the context of the SAP Extended Warehouse Management (EWM) system, particularly when dealing with inventory differences or adjustments. This error indicates that the system has detected an attempt to enter a difference for a specific item or stock that has already been processed.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that a difference for the same item has already been recorded in the system. SAP EWM does not allow multiple entries for the same difference to maintain data integrity.
  Incorrect Process Flow: The user may be trying to enter a difference in a way that is not aligned with the expected process flow in the system.
  System Configuration: There may be specific configurations or settings in the EWM system that restrict the entry of differences under certain conditions.
  
  Solution:
  
  Check Existing Differences: Before entering a new difference, check if there is already an existing difference recorded for the same item. You can do this by reviewing the inventory differences or adjustments in the system.
  Correct Process: Ensure that you are following the correct process for entering inventory differences. This may involve completing any previous steps or transactions that are required before entering a new difference.
  Review Configuration: If you believe that the error is occurring incorrectly, review the system configuration related to inventory differences. Consult with your SAP EWM administrator or support team to ensure that the settings are appropriate for your business processes.
  Use Transaction Codes: Utilize relevant transaction codes (like /SCWM/DIFF for differences) to navigate and manage inventory differences effectively.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on handling inventory differences and understanding the specific error message.
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to this error message. SAP frequently releases updates and patches that may address specific issues.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Training: If this error is common in your organization, consider providing training for users on the correct procedures for entering inventory differences to minimize the occurrence of this error.
  
  By following these steps, you should be able to resolve the error and understand the underlying issues that may be causing it.