How To Fix WRF_APC128 - Material type for EAN &1 does not exist

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 128

• Message text: Material type for EAN &1 does not exist

Self-Explanatory Message

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• What is the cause and solution for SAP error message WRF_APC128 - Material type for EAN &1 does not exist ?

  SAP Error Message:
  
  WRF_APC128: Material type for EAN &1 does not exist
  
  Cause:
  This error occurs when the system tries to process or validate a material based on its EAN (European Article Number, i.e., barcode), but it cannot find an associated material type for the given EAN in the system. Essentially, the system expects that every EAN should be linked to a material with a defined material type, but in this case, the material type is missing or the material itself does not exist.
  Common scenarios causing this error include:
  
  The EAN code entered or scanned does not correspond to any material master record in the system.
  The material master record exists but the material type field is empty or incorrectly maintained.
  The EAN is new and has not been assigned to any material yet.
  Data inconsistencies or missing master data in the material master or EAN assignment tables.
  
  
  Solution:
  
  
  Check Material Master for the EAN:
  
  Use transaction MM03 (Display Material) or MM02 (Change Material) to verify if the material linked to the EAN exists.
  If you do not know the material number, use transaction MMBE or EAN search tools or tables like MARA and EAN/UPC tables (e.g., MARM, EAN).
  
  
  
  Verify Material Type:
  
  In the material master, check the Material Type field (usually in the Basic Data 1 view).
  Ensure the material type is correctly maintained and valid.
  
  
  
  Assign EAN to Material:
  
  If the EAN is not assigned to any material, assign it using transaction MM02 or via the appropriate EAN maintenance transaction.
  Alternatively, use transaction MM01 to create a new material and assign the EAN.
  
  
  
  Check Customizing for Material Types:
  
  Verify if the material type used is active and correctly configured in SPRO under:
  Logistics - General > Material Master > Basic Settings > Material Types > Define Attributes of Material Types
  Ensure no custom validation or user-exit is causing the error.
  
  
  
  Data Consistency Check:
  
  Run consistency checks or reports to find orphaned EANs or materials without material types.
  Check tables like MARA (material master), MARM (units of measure), and EAN related tables.
  
  
  
  
  Related Information:
  
  Material Type: Defines the attributes and behavior of a material in SAP (e.g., raw material, finished product, service).
  EAN (European Article Number): A barcode standard used internationally to identify products.
  Tables to check:
  
  MARA: General material data
  MARC: Plant data for material
  MARM: Units of measure for material
  EAN: EAN/UPC codes assigned to materials (sometimes stored in MARM or custom tables)
  
  
  Transactions:
  
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  SPRO: Customizing for material types
  
  
  
  
  Summary:
  The error "WRF_APC128 Material type for EAN &1 does not exist" means the system cannot find a material type for the material linked to the given EAN. To fix it, ensure the EAN is assigned to a valid material master record with a properly maintained material type. If the material or material type is missing, create or update the material master accordingly.