How To Fix PPEAPO_CLASS008 - Multiple class assignment is not allowed in a hierarchy for &1 &2

PPEAPO_CLASS008 - Overview

• Message type: E = Error

• Message class: PPEAPO_CLASS - Message Class for BAdI Class CL_PPEAPO_CLASS

• Message number: 008

• Message text: Multiple class assignment is not allowed in a hierarchy for &1 &2

Self-Explanatory Message

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PPEAPO_CLASS008 - Details

• The SAP error message PPEAPO_CLASS008 indicates that there is an issue with the assignment of multiple classes in a hierarchy for a specific object (denoted by &1 and &2). This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when dealing with class hierarchies in the Product Master or similar objects.
  
  Cause:
  The error arises when you attempt to assign multiple classes to a single object in a hierarchical structure where only one class is allowed. In SAP APO, each product or object can be assigned to a class, but if the class is part of a hierarchy, it can only belong to one class at a time. This restriction is in place to maintain the integrity of the class hierarchy and ensure that each object is uniquely classified.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Class Assignment: Review the class assignments for the object in question.