How To Fix FKK_MULTICC021 - Rating area is already used for logical port

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_MULTICC - Messages for Distribution to Multiple SAP CC Systems

• Message number: 021

• Message text: Rating area is already used for logical port

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_MULTICC021 - Rating area is already used for logical port ?

  The SAP error message FKK_MULTICC021 indicates that a rating area is already in use for a logical port. This typically occurs in the context of SAP Convergent Charging (SAP CC) or SAP Convergent Invoicing (SAP CI), where logical ports are used to manage communication between different components or systems.
  Cause:
  The error arises when you attempt to assign a rating area to a logical port that is already associated with another rating area. This can happen due to:
  
  Configuration Issues: The logical port may have been incorrectly configured to use a rating area that is already in use.
  Duplicate Assignments: There may be an attempt to assign the same rating area to multiple logical ports, which is not allowed.
  System Migration or Changes: If there have been recent changes or migrations in the system, it may lead to inconsistencies in the configuration.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Configuration:
  
  Go to the configuration settings for the logical ports and rating areas in SAP CC or CI.
  Verify which rating area is currently assigned to the logical port that is causing the error.
  
  
  
  Reassign Rating Areas:
  
  If the rating area is indeed in use, you may need to reassign it to a different logical port or create a new rating area if necessary.
  Ensure that each logical port has a unique rating area assigned to it.
  
  
  
  Review Documentation:
  
  Check the SAP documentation or help resources for guidelines on configuring logical ports and rating areas to ensure compliance with best practices.
  
  
  
  Consult with Basis or Technical Team:
  
  If you are unable to resolve the issue, consult with your SAP Basis or technical team. They may have access to logs or additional tools to diagnose the problem further.
  
  
  
  Testing:
  
  After making changes, conduct thorough testing to ensure that the logical ports and rating areas are functioning as expected without any conflicts.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for Convergent Charging and Invoicing for detailed information on configuration and best practices.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.