How To Fix FKKBIX2349 - Extension names cannot be the following: &1

FKKBIX2349 - Overview

• Message type: E = Error

• Message class: FKKBIX2 - Billing in Contract Accounts Receivable and Payable

• Message number: 349

• Message text: Extension names cannot be the following: &1

Self-Explanatory Message

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FKKBIX2349 - Details

• The SAP error message FKKBIX2349 indicates that there is an issue with the naming of an extension in the context of the SAP system, specifically related to the Financial Accounting (FI) module. The message states that the extension names cannot be the specified value (represented by &1).
  
  Cause:
  The error typically arises when a user attempts to create or modify an extension (such as a custom field or a user-defined function) using a name that is either reserved, invalid, or not allowed by the system. This could be due to:
  
  Using a name that conflicts with existing SAP standard names.
  Using special characters or formats that are not permitted.
  Naming conventions that do not comply with the system's requirements.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Naming Conventions: Ensure that the name you are trying to use for the extension adheres to SAP's naming conventions. Generally, names should be alphanumeric and may have