How To Fix FMHIE_CHGCHK_CUST023 - Address &1 is no longer a leaf node after insertion

FMHIE_CHGCHK_CUST023 - Overview

• Message type: E = Error

• Message class: FMHIE_CHGCHK_CUST - Customizable Messages for BCS Hierarchy Change

• Message number: 023

• Message text: Address &1 is no longer a leaf node after insertion

What causes this issue?

The insertion of address &V1& may violate Budget Address or Posting
Address definition rules maintained in <LS>Create and Assign Hierarchy
ID</> (transaction FMHIE_HIEID). The Budget Address list or Posting
Address list may become invalid by reason of return code &V2&.

System Response

The system recognizes the following return codes for the Budget Address
and Posting Address list checks:
<ZH>Return code 1:</>
BA rule: "All addresses in MBS are valid budget addresses"
PA rule: "All addresses in MBS are valid posting addresses"
No inconsistency for the current Budget Address or Posting Address
lists.
<ZH>Return code 2:</>
BA rule: "All addresses in MBS are valid budget addresses"
PA rule: "Only leaf addresses in MBS are valid posting addresses"
The insertion results in Posting Address list inconsistencies, because
address &V1& is no longer a leaf node. The Posting Address list becomes
invalid, because the inserted node is a valid posting address. The upper
node cannot be a valid posting address.
<ZH>Return code 3:</>
BA rule: "All addresses except leaf addresses are valid budget
addresses"
PA rule: "All addresses in MBS are valid posting addresses"
The insertion results in Budget Address list inconsistencies, because
the upper node of the inserted node is no longer a leaf node and will be
a valid budget address.
<ZH>Return code 4:</>
BA rule: "All addresses except leaf addresses are valid budget
addresses"
PA rule: "Only leaf addresses in MBS are valid posting addresses"
The insertion results in Budget Address list inconsistencies, because
the upper node of the inserted node is no longer a leaf node and will be
a valid budget address.
The insertion results in Posting Address list inconsistencies, because
address &V1& is no longer a leaf node. The Posting Address list becomes
invalid, because the inserted node is a valid posting address. The upper
node can not be a valid posting address.

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FMHIE_CHGCHK_CUST023 - Details

• The SAP error message FMHIE_CHGCHK_CUST023 indicates that there is an issue with the address hierarchy in the system. Specifically, the message states that the address you are trying to insert or change is no longer a "leaf node." In the context of hierarchical data structures, a leaf node is a node that does not have any children. When you attempt to insert or change an address that is expected to be a leaf node, but it is not, this error is triggered.
  
  Cause:
  
  Hierarchy Structure Change: The address you are trying to modify or insert is part of a hierarchy that has been altered, making it no longer a leaf node. This could happen if other addresses have been added or modified in the hierarchy.
  Data Integrity Issues: There may be inconsistencies in the data that prevent the system from recognizing the address as a leaf node.
  Concurrent Modifications: If multiple users or processes