How To Fix WRF_APC518 - Material type, material group and material category are blank

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 518

• Message text: Material type, material group and material category are blank

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC518 - Material type, material group and material category are blank ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC518: Material type, material group and material category are blank
  
  Cause:
  This error occurs when the system expects the fields Material Type, Material Group, and Material Category to be filled but finds them empty during a process related to material master data or integration with Advanced Planning and Optimization (APO) components.
  Common scenarios include:
  
  When creating or replicating material master data to APO (e.g., CIF - Core Interface).
  When running planning or integration processes that require these fields to be populated.
  Missing or incomplete material master data in ECC or APO system.
  Incorrect or incomplete configuration in the integration model or CIF settings.
  
  
  Explanation:
  
  Material Type: Defines the type of material (e.g., raw material, finished product).
  Material Group: Used for grouping materials for reporting or pricing.
  Material Category: Often used in APO to classify materials for planning purposes.
  
  If these fields are blank, the system cannot correctly process the material for planning, replication, or other related functions.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to transaction MM03 (Display Material) or MM02 (Change Material).
  Verify that the Material Type and Material Group are maintained in the material master.
  Ensure that the Material Category is maintained if applicable (especially in APO).
  
  
  
  Maintain Material Category in APO:
  
  In APO, use transaction /SAPAPO/MAT1 to check and maintain the material category.
  If missing, assign the correct material category to the material.
  
  
  
  Check CIF Integration:
  
  Verify the integration model in transaction CIF (e.g., CFM1, CFM2, CFM3).
  Ensure that the material is included in the integration model and that the relevant fields are correctly mapped.
  Re-initialize or replicate the material master data if necessary.
  
  
  
  Review Customizing:
  
  Check the configuration for material types and groups in ECC (SPRO ? Logistics - General ? Material Master ? Basic Settings).
  Ensure that the material types and groups are correctly defined and active.
  
  
  
  Data Consistency Check:
  
  Run consistency checks or reports to identify materials with missing fields.
  Correct the data accordingly.
  
  
  
  Authorization Check:
  
  Ensure the user has the necessary authorizations to view/change material master data.
  
  
  
  
  Related Information:
  
  Transactions:
  
  MM01/MM02/MM03 – Material Master Maintenance
  /SAPAPO/MAT1 – APO Material Master
  CFM1/CFM2/CFM3 – CIF Integration Model Maintenance
  
  
  Notes and Documentation:
  
  Check SAP Notes related to CIF and material master integration.
  Review SAP APO integration guides for material master data requirements.
  
  
  Common SAP Modules Involved:
  
  MM (Materials Management)
  APO (Advanced Planning and Optimization)
  CIF (Core Interface)
  
  
  
  
  Summary:
  The error WRF_APC518 indicates missing essential material master data fields (Material Type, Material Group, Material Category). To resolve it, ensure these fields are properly maintained in both ECC and APO systems, verify CIF integration settings, and correct any data inconsistencies.
  
  If you provide the exact context or transaction where this error occurs, I can help with more specific troubleshooting steps.