How To Fix WPRO_XI_PROXY054 - EAN/UPC &1 is not unique

WPRO_XI_PROXY054 - Overview

• Message type: E = Error

• Message class: WPRO_XI_PROXY - Messages Service Processing Retail Event

• Message number: 054

• Message text: EAN/UPC &1 is not unique

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPRO_XI_PROXY054 - EAN/UPC &1 is not unique ?

  SAP Error Message:
  WPRO_XI_PROXY054 EAN/UPC &1 is not unique
  
  
  Cause:
  This error occurs when the system detects that the EAN/UPC code (European Article Number / Universal Product Code) you are trying to assign to a material or product already exists for another material in the system. In SAP, EAN/UPC codes must be unique identifiers for products to avoid confusion in logistics, sales, and inventory processes.
  Specifically, the error arises during the creation or update of material master data or when processing IDocs or proxy messages related to material data, where the EAN/UPC code is checked for uniqueness.
  
  Explanation:
  
  The EAN/UPC code is used as a unique barcode identifier for products.
  SAP enforces uniqueness to ensure that each EAN/UPC corresponds to exactly one material.
  If you try to assign an EAN/UPC code that is already assigned to another material, the system throws this error.
  
  
  
  Solution:
  
  
  Check for Duplicate EAN/UPC Codes:
  
  Use transaction MM03 (Display Material) or MM04 (Display Material EAN/UPC) to check