How To Fix PPEGUI201 - Node type & cannot be assigned to a class and is copied without a class

PPEGUI201 - Overview

• Message type: E = Error

• Message class: PPEGUI - Message Interface

• Message number: 201

• Message text: Node type & cannot be assigned to a class and is copied without a class

What causes this issue?

You have tried to create a node with the node type &. However, this
node type does not have a class assignment in Customizing.

System Response

The node is created without a class assignment.

How to fix this error?

Create the node without a class assignment, or use a different node
type. Or you can change the node type in Customizing so that the node
can also be created with a class.

Error message extract from SAP system. Copyright SAP SE.

PPEGUI201 - Details

• The SAP error message PPEGUI201 typically occurs in the context of the SAP Production Planning and Detailed Scheduling (PP/DS) module. This error indicates that a node type cannot be assigned to a class and is being copied without a class. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  Node Type Configuration: The error usually arises when there is a mismatch in the configuration of node types and classes in the system. Specifically, it may occur if a node type is defined in a way that it cannot be associated with a class.
  Missing Class Assignment: The node type may not have a corresponding class assigned to it, which is required for certain operations in the PP/DS environment.
  Data Integrity Issues: There may be inconsistencies or errors in the master data or configuration settings that lead to this issue.
  
  Solution
  
  
  Check Node Type Configuration:
  
  Go to the configuration settings for node types in the