How To Fix FKK_BRF021 - Structure ID &1: '$' is a reserved character

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_BRF - BRF in FICA

• Message number: 021

• Message text: Structure ID &1: '$' is a reserved character

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKK_BRF021 - Structure ID &1: '$' is a reserved character ?

  The SAP error message FKK_BRF021 indicates that there is an issue with the use of a reserved character, specifically the dollar sign ($), in a structure ID. This error typically arises in the context of SAP's Billing and Revenue Innovation Management (BRIM) or similar financial applications where structures are defined for processing.
  Cause:
  The error occurs because the structure ID you are trying to use contains a reserved character ($). In SAP, certain characters are reserved for specific functions or operations, and using them in identifiers can lead to conflicts or unexpected behavior.
  Solution:
  To resolve this error, you should:
  
  
  Identify the Structure ID: Check the structure ID that is causing the error. This will be indicated in the error message as &1.
  
  
  Modify the Structure ID: Change the structure ID to remove the dollar sign ($) or any other reserved characters. Ensure that the new ID adheres to the naming conventions and does not include any special characters that are not allowed.
  
  
  Test the Changes: After modifying the structure ID, test the changes to ensure that the error no longer occurs and that the functionality works as expected.
  
  
  Review Documentation: Consult the SAP documentation or guidelines regarding naming conventions for structure IDs to avoid similar issues in the future.
  
  
  Related Information:
  
  Reserved Characters: In SAP, certain characters are reserved for specific purposes. It's important to familiarize yourself with these to avoid conflicts.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions related to this error.
  Transaction Codes: If you are working with specific transactions related to billing or revenue management, ensure that you are using the correct transaction codes and following the appropriate procedures.
  
  If the issue persists after making the changes, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.