How To Fix WRF_APC545 - Characteristic values cannot be assigned to material &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 545

• Message text: Characteristic values cannot be assigned to material &1

What causes this issue?

In the grid for planned quantities, you can add characteristic values
only to generic materials. However, the selected material &V1& is (a)
&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?

For materials other than generic materials, you can only maintain
planned quantities on the purchasing list item level.

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_APC545 - Characteristic values cannot be assigned to material &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC545 - Characteristic values cannot be assigned to material &1
  
  Cause:
  This error occurs when you try to assign characteristic values to a material in a context where it is not allowed or not properly configured. Typically, this happens in the SAP Variant Configuration (LO-VC) or Classification (CL) environment when:
  
  The material is not assigned to a class that contains the characteristic.
  The characteristic is not valid for the material.
  The material master or class assignment is incomplete or inconsistent.
  The characteristic values are being assigned in a context where the system expects a different configuration or classification setup.
  
  In other words, the system prevents assigning characteristic values to a material that is not properly classified or configured to accept those characteristics.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check Material-Class Assignment:
  
  Go to transaction CL20N or MM02.
  Verify that the material is assigned to the correct class.
  The class should contain the characteristic(s) you want to assign.
  
  
  
  Verify Characteristic Assignment:
  
  In transaction CL02, check that the characteristic is assigned to the class.
  Ensure the characteristic is active and valid.
  
  
  
  Check Characteristic Values:
  
  Make sure the characteristic values you want to assign are valid and exist in the system.
  Use transaction CT04 to review characteristic values.
  
  
  
  Review Configuration Setup:
  
  If you are working with variant configuration, ensure that the material is set up as a configurable material.
  Check the configuration profile and dependencies.
  
  
  
  Assign Characteristic Values Correctly:
  
  Use the appropriate transaction or screen to assign characteristic values to the material.
  For classification, use CL24N or CL20N.
  For variant configuration, use the configuration screen or CU50.
  
  
  
  Check Authorizations:
  
  Ensure you have the necessary authorizations to change material classification or configuration.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  CL20N – Change Class Assignment
  CL02 – Change Characteristic
  CT04 – Change Characteristic Values
  MM02 – Change Material Master
  CU50 – Change Variant Configuration
  CL24N – Change Class for Object
  
  
  
  SAP Notes:
  
  Check SAP Notes related to variant configuration and classification if the problem persists.
  Sometimes, system patches or updates may affect classification behavior.
  
  
  
  Documentation:
  
  SAP Help Portal on Variant Configuration and Classification.
  SAP Library: Logistics – General > Variant Configuration > Master Data.
  
  
  
  
  If after these checks the problem still exists, it may be necessary to debug or check for custom enhancements or user exits that affect characteristic assignment.
  
  Summary:
  
  The error "WRF_APC545 Characteristic values cannot be assigned to material &1" means the material is not properly set up to accept characteristic values, usually due to missing or incorrect class assignment or configuration. Correct the material-class linkage and ensure the characteristic is valid and assigned properly.
  
  If you need help with specific steps or screenshots, feel free to ask!