How To Fix OAA_VENDOR026 - Multiple material records found for GTIN &1

OAA_VENDOR026 - Overview

• Message type: E = Error

• Message class: OAA_VENDOR - Message Class for Vendor Integration

• Message number: 026

• Message text: Multiple material records found for GTIN &1

Self-Explanatory Message

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OAA_VENDOR026 - Details

• The SAP error message OAA_VENDOR026 indicates that there are multiple material records associated with a Global Trade Item Number (GTIN) in the system. This can occur in scenarios where the GTIN is not uniquely mapped to a single material, leading to confusion in processing transactions related to that GTIN.
  
  Cause:
  
  Duplicate GTIN Entries: There may be multiple materials in the system that share the same GTIN, which violates the uniqueness requirement for GTINs.
  Incorrect Data Maintenance: During data entry or maintenance, GTINs may have been incorrectly assigned to multiple materials.
  Data Migration Issues: If data was migrated from another system, it’s possible that duplicates were introduced during the migration process.
  
  
  Solution:
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to query the relevant database tables (e.g., MARA, MARC, or similar) to identify all materials associated with the problematic GTIN.
  Data Cleanup: Once duplicates are identified, you will need to determine which records are valid and which