How To Fix WRF_APC016 - Characteristic &1 is not allowed for material &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 016

• Message text: Characteristic &1 is not allowed for material &2

What causes this issue?

The characteristic &V1& either does not exist or is not included in the
classification for material &V2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use a characteristic that is defined in the classification for material
&V2&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC016 - Characteristic &1 is not allowed for material &2 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC016 Characteristic &1 is not allowed for material &2
  
  Meaning / Cause:
  This error occurs in the context of SAP Variant Configuration (LO-VC) or Classification when you try to assign or use a characteristic (&1) for a material (&2) that is not allowed or not valid for that material.
  More specifically:  
  
  The characteristic you are trying to assign or use is not assigned to the material's class.  
  The material is classified with certain classes, and each class has a set of characteristics. If you try to use a characteristic that is not part of the material's class, the system throws this error.  
  It can also occur during configuration or when creating/configuring a variant of a material if the characteristic is not part of the material's classification.
  
  
  Common Scenarios:
  
  During variant configuration, when a characteristic is used in a configuration profile but is not assigned to the material's class.  
  When maintaining or changing classification data for a material.  
  When creating or changing a sales order or production order with variant configuration, and the characteristic is not valid for the material.
  
  
  Solution / How to Fix:
  
  
  Check Material Classification:
  
  Go to transaction CL20N (Change Class) or MM02 (Change Material) ? Classification tab.  
  Verify which classes are assigned to the material.
  
  
  
  Check Characteristics Assigned to the Class:
  
  Use transaction CL02 to display the class.  
  Check if the characteristic (&1) is assigned to the class of the material (&2).
  
  
  
  Assign the Characteristic to the Class:
  
  If the characteristic is missing, assign it to the class.  
  Save the class after adding the characteristic.
  
  
  
  Check Characteristic Usage in Variant Configuration:
  
  If you are working with variant configuration, ensure that the characteristic is part of the configuration profile and assigned correctly.
  
  
  
  Reclassify the Material if Needed:
  
  If the material is assigned to the wrong class, correct the class assignment.
  
  
  
  Check for Typing or Data Entry Errors:
  
  Sometimes the characteristic or material number might be mistyped.
  
  
  
  
  Additional Information:
  
  
  Transaction Codes:
  
  CL02 – Change Class  
  CL20N – Change Material Classification  
  MM02 – Change Material Master (Classification tab)  
  CU50 – Configuration Profile Maintenance  
  CU41 – Characteristic Maintenance
  
  
  
  Related Tables:
  
  KLAH – Class Header  
  KSSK – Characteristic Assignment to Class  
  INOB – Object Classification (material classification data)
  
  
  
  Notes:
  
  Characteristics must be assigned to the class before they can be used for the material.  
  In variant configuration, characteristics define the configurable features of a material.  
  This error prevents inconsistent or invalid configuration data.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Characteristic not assigned to material's class.
  
  
  Effect
  Cannot use characteristic for material configuration.
  
  
  Solution
  Assign characteristic to the class of the material.
  
  
  Transactions
  CL02, CL20N, MM02, CU50, CU41
  
  
  
  
  If you need further help, please provide the characteristic and material numbers, and the context in which the error occurs (e.g., during sales order, material master change, configuration, etc.).