How To Fix BRF473 - &1: Unknown or invalid category of implementing class

BRF473 - Overview

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 473

• Message text: &1: Unknown or invalid category of implementing class

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 BRF473 - &1: Unknown or invalid category of implementing class ?

  The SAP error message BRF473 indicates that there is an issue with the Business Rule Framework (BRF+) configuration, specifically related to an unknown or invalid category of implementing class. This error typically arises when the system is unable to find or recognize a specific class that is supposed to implement a certain functionality or rule.
  
  Cause:
  
  Incorrect Configuration: The implementing class may not be correctly configured in the BRF+ application.
  Missing Class: The class that is referenced in the BRF+ rule may not exist in the system or may not be activated.
  Transport Issues: If the BRF+ configuration was transported from one system to another, there may have been issues during the transport that led to missing or invalid classes.
  Version Mismatch: There may be a version mismatch between the BRF+ application and the underlying classes or components.
  
  
  Solution:
  
  Check Configuration: Verify the configuration of the BRF+ application to ensure that the implementing class is correctly defined