How To Fix IL198 - Change only the last hierarchy level

IL198 - Overview

• Message type: E = Error

• Message class: IL - PM: ILOM - Functional Locations

• Message number: 198

• Message text: Change only the last hierarchy level

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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 IL198 - Change only the last hierarchy level ?

  The SAP error message IL198, which states "Change only the last hierarchy level," typically occurs in the context of working with hierarchical data structures in SAP, such as when managing bills of materials (BOMs) or other hierarchical master data.
  
  Cause:
  This error arises when a user attempts to make changes to a node in a hierarchy that is not the last level (leaf node). In hierarchical structures, only the lowest level (the last hierarchy level) can be modified directly. Changes to higher levels or parent nodes may affect the entire structure and are therefore restricted to maintain data integrity.
  
  Solution:
  To resolve the IL198 error, follow these steps:
  
  
  Identify the Hierarchy Level: Check the hierarchy structure to determine which level you are trying to modify. Ensure that you are attempting to change a leaf node.
  
  
  Navigate to the Last Level: If you need to make changes, navigate down to the last level of the hierarchy where