How To Fix FKKBIX2304 - Type of consumer ID for service ID &1 is not unique

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 304

• Message text: Type of consumer ID for service ID &1 is not unique

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 FKKBIX2304 - Type of consumer ID for service ID &1 is not unique ?

  The SAP error message FKKBIX2304 indicates that there is a problem with the uniqueness of the consumer ID associated with a service ID in the system. This error typically arises in the context of SAP's Financial Accounting (FI) or Contract Accounts Receivable and Payable (FI-CA) modules, where service IDs are used to identify specific services or transactions.
  Cause:
  The error occurs when the system finds multiple entries for the same service ID with different consumer IDs, which violates the requirement for uniqueness. This can happen due to:
  
  Data Entry Errors: Duplicate entries may have been created inadvertently during data entry.
  Configuration Issues: Incorrect configuration settings in the system may lead to the same service ID being assigned to multiple consumer IDs.
  Data Migration Issues: If data was migrated from another system, it may have resulted in duplicates if not handled properly.
  
  Solution:
  To resolve the FKKBIX2304 error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., FKKOP for open items) and check for duplicate entries for the service ID in question.
  Identify the consumer IDs associated with the service ID and determine why they are not unique.
  
  
  
  Correct Data:
  
  If duplicates are found, you may need to delete or merge the duplicate entries, depending on your business requirements.
  Ensure that the correct consumer ID is associated with the service ID.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the system related to service IDs and consumer IDs to ensure they are set up correctly.
  Make adjustments as necessary to prevent future occurrences of this error.
  
  
  
  Data Migration Review:
  
  If the issue arose after a data migration, review the migration process to ensure that it correctly handled unique constraints.
  Consider re-running the migration with proper checks for uniqueness.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to this error message for additional insights or specific instructions.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and others that may help in analyzing the data.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Testing: After making corrections, perform tests to ensure that the error does not reoccur and that the system behaves as expected.
  
  By following these steps, you should be able to identify the cause of the FKKBIX2304 error and implement a solution to resolve it.