How To Fix WTADDI_APPL018 - Class & does not contain plant/customer & for additionals procedure

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI_APPL - Messages for Application Log LO-ADM/APPL

• Message number: 018

• Message text: Class & does not contain plant/customer & for additionals procedure

INCLUDE WTADDI_APPL017 OBJECT DOKU ID NA

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message WTADDI_APPL018 - Class & does not contain plant/customer & for additionals procedure ?

  SAP Error Message:
  
  WTADDI_APPL018 Class & does not contain plant/customer & for additionals procedure
  
  Meaning / Cause:
  This error occurs in the context of Warehouse Task Additionals (WTADDI) procedures in SAP Extended Warehouse Management (EWM). The system is trying to determine additional data (like packaging instructions, handling units, or other warehouse task-related data) based on a class assigned to a product or material.
  
  The error indicates that the class assigned to the product or material does not contain the required characteristics or classification data for the specified plant or customer.
  In other words, the system expects that the class used for the additional procedure should have entries (characteristic values) that are valid for the given plant or customer.
  If these entries are missing, the system cannot proceed with the additional procedure, hence the error.
  
  
  When does it occur?
  
  During warehouse task creation or processing when the system tries to read classification data for additional procedures.
  When the system uses classification-based determination for packaging or handling instructions.
  When the class assigned to the product/material is incomplete or missing plant/customer-specific data.
  
  
  Root Causes:
  
  The class assigned to the material/product does not have characteristic values maintained for the relevant plant or customer.
  The classification data is incomplete or missing.
  The additional procedure is configured to require plant/customer-specific classification data, but such data is not maintained.
  Incorrect or missing assignment of class to the material/product.
  The plant or customer data is not maintained in the classification system for the class in question.
  
  
  Solution / How to fix:
  
  
  Check the class assigned to the material/product:
  
  Use transaction CL20N (Classification Maintenance) or MM02 (Material Master) to verify the class assignment.
  Ensure the correct class is assigned to the material.
  
  
  
  Maintain classification data for the class:
  
  Go to CL20N.
  Enter the class number and the object (material).
  Check if the characteristic values for the plant and/or customer are maintained.
  If missing, maintain the required characteristic values for the plant/customer.
  
  
  
  Verify the additional procedure configuration:
  
  Check the configuration of the additional procedure in EWM (SPRO path: Extended Warehouse Management ? Cross-Process Settings ? Warehouse Task ? Additional Data ? Define Additional Procedures).
  Confirm if the procedure requires classification data with plant/customer dependency.
  Adjust the procedure if necessary.
  
  
  
  Check plant/customer master data:
  
  Ensure that the plant and customer data are correctly maintained and consistent with the classification data.
  
  
  
  Testing:
  
  After maintaining the classification data, test the warehouse task creation again to confirm the error is resolved.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  CL20N – Classification Maintenance
  MM02 – Change Material Master (to check class assignment)
  SPRO – Configuration for additional procedures in EWM
  
  
  
  SAP Notes / Documentation:
  
  Check SAP Notes related to WTADDI errors or classification issues in EWM.
  SAP Help Portal for EWM Warehouse Task Additional Procedures.
  
  
  
  Additional Tips:
  
  Classification in SAP is often used to store additional attributes that are not part of the standard material master.
  Plant/customer-specific classification data allows differentiation of handling or packaging instructions per plant or customer.
  Always ensure consistency between master data and classification data.
  
  
  
  
  If you provide the exact context (e.g., transaction, process step, material, plant, customer), I can help you with more specific instructions.