How To Fix /SAPAPO/MC01304 - Key &&:Required characteristic &1 has not been assigned vals in class &2

/SAPAPO/MC01304 - Overview

• Message type: E = Error

• Message class: /SAPAPO/MC01 -

• Message number: 304

• Message text: Key &&:Required characteristic &1 has not been assigned vals in class &2

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MC01304 - Key &&:Required characteristic &1 has not been assigned vals in class &2 ?

  The SAP error message /SAPAPO/MC01304 indicates that a required characteristic in a class has not been assigned any values. This error typically occurs in the context of Advanced Planning and Optimization (APO) when working with product master data or class assignments.
  
  Cause:
  The error is triggered when:
  
  A characteristic that is marked as required in a class is not assigned any values for a specific object (e.g., a product).
  The system expects certain characteristics to have values for planning or execution processes, but they are missing.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Characteristic and Class:
  
  The error message will specify the characteristic (&1) and the class (&2) that are causing the issue. Take note of these details.
  
  
  
  Check Class Assignment:
  
  Go to the class in transaction CL02 (Change Class) or CL03 (Display Class) and verify the characteristics assigned to it.
  Ensure that the required characteristic is indeed part of the class.
  
  
  
  Assign Values to the Characteristic:
  
  If