How To Fix IDCN123 - Selected node &1 cannot be used for adding new Account Levels

IDCN123 - Overview

• Message type: E = Error

• Message class: IDCN -

• Message number: 123

• Message text: Selected node &1 cannot be used for adding new Account Levels

What causes this issue?

You are trying to add new Account Level to a node in the Account Level
Hierarchy, which is not possible. This is because, the node &V1& is
either a G/L Account node or an Account Level with already assigned G/L
accounts.

System Response

It is not possible to add new Account Levels here.

How to fix this error?

Select an Account Level or first Account Level Hierarchy for adding new
Account Levels.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IDCN123 - Selected node &1 cannot be used for adding new Account Levels ?

  The SAP error message IDCN123, which states "Selected node &1 cannot be used for adding new Account Levels," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with the configuration of account assignment or account levels in the system.
  
  Cause:
  The error usually arises due to one of the following reasons:
  
  
  Node Restrictions: The selected node (represented by &1) may have restrictions that prevent the addition of new account levels. This could be due to the node being a summary node or a node that is not configured to allow further account levels.
  
  
  Hierarchy Structure: The hierarchy structure may not support the addition of new account levels at the selected node. For example, if the node is at the highest level of a hierarchy, it may not allow further subdivisions.
  
  
  Configuration Settings: There may be specific configuration settings in the system that restrict the addition of new account levels for