How To Fix WRF_APC642 - Material &1 already exists for catalog &2, EAN &3, suppl. generic mat. &4

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 642

• Message text: Material &1 already exists for catalog &2, EAN &3, suppl. generic mat. &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC642 - Material &1 already exists for catalog &2, EAN &3, suppl. generic mat. &4 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC642: Material &1 already exists for catalog &2, EAN &3, suppl. generic mat. &4
  
  Meaning / Cause:
  This error occurs when you try to create or assign a material in the SAP system that already exists with the same combination of:
  
  Material number (&1)
  Catalog (&2)
  EAN (European Article Number) (&3)
  Supplier generic material number (&4)
  
  In other words, the system detects a duplicate entry for a material with the same catalog, EAN, and supplier generic material number. This is typically related to the SAP Advanced Planning and Optimization (APO) or SAP Retail modules where materials are managed with catalogs and supplier references.
  
  Cause Details:
  
  The system enforces uniqueness for the combination of material, catalog, EAN, and supplier generic material to avoid data inconsistencies.
  Attempting to create or update a material master or related data with a combination that already exists triggers this error.
  It may happen during data upload, master data maintenance, or integration processes (e.g., CIF transfer between ERP and APO).
  
  
  Solution / How to Fix:
  
  
  Check Existing Entries:
  
  Verify if the material with the same catalog, EAN, and supplier generic material number already exists.
  Use transaction codes like MM03 (Display Material) or relevant APO transactions to check existing master data.
  
  
  
  Avoid Duplicate Creation:
  
  If the material already exists, do not create a new entry with the same combination.
  Instead, update the existing material master or related data as needed.
  
  
  
  Correct Data Input:
  
  Ensure that the data being entered or uploaded is correct and does not duplicate existing records.
  Check the source data for duplicates before uploading.
  
  
  
  Data Cleanup:
  
  If duplicates exist due to previous incorrect entries, consider cleaning up the data by deleting or merging duplicates.
  
  
  
  Check Integration Settings:
  
  If the error occurs during CIF (Core Interface) data transfer between ERP and APO, verify the CIF settings and mappings.
  Ensure that the supplier generic material and catalog assignments are consistent.
  
  
  
  Consult SAP Notes:
  
  Search for SAP Notes related to message WRF_APC642 for any patches or known issues.
  
  
  
  
  Related Information:
  
  Module: SAP APO (Advanced Planning and Optimization), SAP Retail
  Transactions: MM03, /SAPAPO/MAT1 (Display Product in APO), CIF monitoring transactions (/SAPAPO/CIFMON)
  Tables: 
  
  MARA (General Material Data)
  /SAPAPO/MATKEY (APO Material Key)
  /SAPAPO/CATALOG (Catalog data)
  
  
  SAP Notes: Check SAP Service Marketplace for notes related to WRF_APC642 or material master data duplication issues.
  
  
  Summary:
  The error WRF_APC642 indicates a duplicate material entry for the same catalog, EAN, and supplier generic material number. To resolve it, verify existing data, avoid duplicate creation, correct input data, and ensure integration consistency.
  
  If you provide more context (e.g., transaction or process where the error occurs), I can help with more specific guidance.