How To Fix /SAPAPO/MAT167 - Main GTIN/EAN for the UoM &1 is not unique; the system deletes duplicates

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 167

• Message text: Main GTIN/EAN for the UoM &1 is not unique; the system deletes duplicates

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MAT167 - Main GTIN/EAN for the UoM &1 is not unique; the system deletes duplicates ?

  The SAP error message /SAPAPO/MAT167 indicates that there is a problem with the Global Trade Item Number (GTIN) or European Article Number (EAN) associated with a specific Unit of Measure (UoM) in the Advanced Planning and Optimization (APO) module. The error states that the GTIN/EAN for the specified UoM is not unique, which means that there are multiple entries for the same GTIN/EAN in the system, leading to ambiguity.
  Cause:
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate GTIN/EAN entries for the same material and UoM in the system. This can happen due to data entry errors, incorrect data uploads, or inconsistencies in master data management.
  Incorrect Master Data Configuration: If the master data for materials is not properly maintained, it can lead to multiple GTIN/EANs being assigned to the same UoM.
  Data Migration Issues: During data migration from legacy systems to SAP, duplicates may be introduced if the data cleansing process is not thorough.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like MM03 (Display Material) or SE16N (Data Browser) to check the material master data for the specific material and UoM. Look for multiple entries of GTIN/EAN.
  Remove Duplicates: Once duplicates are identified, you can either delete the unnecessary entries or consolidate them into a single unique entry. Ensure that the correct GTIN/EAN is retained.
  Data Maintenance: Regularly maintain and audit your master data to prevent duplicates from occurring in the future. Implement data governance practices to ensure data integrity.
  Check Configuration: Review the configuration settings in the material master to ensure that GTIN/EAN assignments are correctly set up for each UoM.
  Consult Documentation: Refer to SAP documentation or consult with your SAP support team for specific steps related to your version of SAP and the APO module.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) for managing material master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to GTIN/EAN handling in your version of SAP.
  Training: Consider training for users involved in data entry and master data management to minimize the risk of duplicates in the future.
  
  By addressing the root cause of the duplicates and implementing preventive measures, you can resolve the error and maintain data integrity in your SAP system.