How To Fix IDCN122 - Only one top-level node can be defined for Account Level Hierarchy &1

SAP Error Message - Details

• Message type: E = Error

• Message class: IDCN -

• Message number: 122

• Message text: Only one top-level node can be defined for Account Level Hierarchy &1

What causes this issue?

You tried to add multiple nodes to the top level of the <LS>Account
Level Hierarchy</> &V1&.

System Response

It is not allowed to define more than one top node in the <LS>Account
Level Hierarchy</>.

How to fix this error?

New account level nodes can be created only as sub nodes under the top
<LS>Account level Hierarchy</> node.

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 IDCN122 - Only one top-level node can be defined for Account Level Hierarchy &1 ?

  The SAP error message IDCN122, which states "Only one top-level node can be defined for Account Level Hierarchy &1," typically occurs when you are trying to create or modify an account hierarchy in SAP, and the system detects that there is more than one top-level node defined for the specified hierarchy.
  Cause:
  The error is caused by the following scenarios:
  
  Multiple Top-Level Nodes: You may have inadvertently defined more than one node at the top level of the hierarchy. In a valid account hierarchy, there should only be one top-level node.
  Incorrect Hierarchy Structure: The structure of the hierarchy may not conform to the expected format, leading to multiple nodes being treated as top-level.
  Data Entry Errors: There may be data entry errors or inconsistencies in the hierarchy definition that result in multiple nodes being recognized as top-level.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Hierarchy Structure:
  
  Go to the hierarchy definition in SAP and check the structure of the account hierarchy.
  Ensure that there is only one node at the top level. If there are multiple nodes, you will need to adjust the hierarchy to have a single top-level node.
  
  
  
  Modify the Hierarchy:
  
  If you find multiple top-level nodes, decide which one should remain as the top-level node and reassign the others to be child nodes under the selected top-level node.
  You can do this by dragging and dropping nodes in the hierarchy editor or using the appropriate functions in the SAP interface.
  
  
  
  Check for Inactive Nodes:
  
  Sometimes, inactive or deleted nodes may still be recognized by the system. Ensure that all nodes are active and correctly defined.
  
  
  
  Validate Changes:
  
  After making the necessary adjustments, validate the hierarchy to ensure that it meets the requirements and does not produce any errors.
  
  
  
  Consult Documentation:
  
  If you are unsure about the hierarchy structure, refer to SAP documentation or guidelines specific to account level hierarchies for your version of SAP.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like OBH1 (for creating account hierarchies) or OBH2 (for changing account hierarchies) to manage account hierarchies.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  User Roles: Ensure that you have the necessary permissions to create or modify account hierarchies in SAP.
  
  By following these steps, you should be able to resolve the IDCN122 error and successfully manage your account level hierarchy in SAP.