How To Fix FKKBIX689 - Field &1 in include &2 is not used in any consumption item class

FKKBIX689 - Overview

• Message type: E = Error

• Message class: FKKBIX - Conv.Inv.: Billing (Invoice Preprocessing)

• Message number: 689

• Message text: Field &1 in include &2 is not used in any consumption item class

What causes this issue?

The result of the check of the work structures is that the &v1& field in
customer include &v2& is not used in any consumption item class.

System Response

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?

Fields that are not used place an unnecessary burden on the working
memory of processes that process consumption items. To reduce the need
for working memory, you can remove the &v1& field from structure &v2& in
the Data Dictionary, as long as the field is not used in any customer
programs.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FKKBIX689 - Details

• The SAP error message FKKBIX689 indicates that a specific field (denoted as &1) in a particular include (denoted as &2) is not utilized in any consumption item class. This error typically arises in the context of SAP's Flexible Real Estate Management (RE-FX) module, particularly when dealing with consumption items in contracts or lease agreements.
  
  Cause:
  
  Field Configuration: The field specified in the error message is not linked to any consumption item class. This could be due to incorrect configuration or missing assignments in the system.
  Custom Development: If there have been custom developments or modifications in the system, it is possible that the field was added but not properly integrated into the relevant consumption item classes.
  Data Model Changes: Changes in the data model or updates to the system might have led to the field being orphaned or not associated with any consumption item class.
  
  
  Solution:
  
  Check Field Usage: Verify if the field in question is