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

SAP Error Message - Details

• 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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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBIX2349 - Extension names cannot be the following: &1 ?

  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 specific length restrictions.
  
  
  Avoid Reserved Names: Make sure that the name you are using is not a reserved name in the SAP system. You can refer to SAP documentation or consult with your SAP administrator to identify reserved names.
  
  
  Use a Different Name: If the name you are trying to use is not allowed, choose a different name that complies with the naming rules. It is often a good practice to use a prefix that identifies your custom development (e.g., Z or Y).
  
  
  Consult Documentation: Review the relevant SAP documentation or notes related to the specific module you are working with. This can provide insights into naming conventions and restrictions.
  
  
  Check for Existing Extensions: If you are modifying an existing extension, ensure that the name you are trying to use does not already exist in the system.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide guidance based on the specific context of your implementation.
  
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to this error message for additional context or updates.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Documentation: Review the SAP Help Portal for documentation on extension naming conventions and best practices.
  
  By following these steps, you should be able to identify the cause of the FKKBIX2349 error and implement a suitable solution.