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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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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,