How To Fix MH234 - For the material &1 the main EAN for the unit of measure &2 is not unique

MH234 - Overview

• Message type: E = Error

• Message class: MH - Maintain Material Master Data (Retail)

• Message number: 234

• Message text: For the material &1 the main EAN for the unit of measure &2 is not unique

Self-Explanatory Message

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MH234 - Details

• The SAP error message MH234 indicates that there is an issue with the European Article Number (EAN) for a specific material and its unit of measure (UoM). The error states that the main EAN for the specified material and UoM is not unique, meaning that there are multiple entries for the same EAN in the system, which can lead to confusion and errors in inventory management, sales, and logistics processes.
  
  Cause:
  
  Duplicate EAN Entries: The most common cause of this error is that the same EAN has been assigned to multiple materials or units of measure in the system.
  Incorrect Data Entry: There may have been a mistake during data entry, leading to the same EAN being assigned to different materials or UoMs.
  Data Migration Issues: If data was migrated from another system, it’s possible that duplicates were introduced during the migration process.
  
  
  Solution:
  To resolve the MH234 error, you can follow these steps:
  
  
  Check EAN Assignments:
  
  Go