How To Fix REXCSCFC004 - FI document exists twice

SAP Error Message - Details

• Message type: E = Error

• Message class: REXCSCFC - Messages for Collection REXCSCFC

• Message number: 004

• Message text: FI document exists twice

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 REXCSCFC004 - FI document exists twice ?

  The SAP error message REXCSCFC004, which states "FI document exists twice," typically occurs in the context of financial accounting (FI) when there is an attempt to post a document that already exists in the system. This can happen during various processes, such as posting invoices, payments, or other financial transactions.
  Cause:
  
  Duplicate Document Entry: The most common cause is that the same financial document has been entered more than once, either manually or through an automated process.
  Incorrect Document Number Range: If the document number range is not set up correctly, it may allow for duplicate entries.
  Data Migration Issues: During data migration or system upgrades, duplicate records may be created if the data is not cleaned or validated properly.
  Parallel Processing: If multiple users or processes are trying to post the same document simultaneously, it can lead to duplicates.
  
  Solution:
  
  Identify Duplicate Documents: Use transaction codes like FB03 (Display Document) or FB02 (Change Document) to check for existing documents with the same document number and fiscal year.
  Delete or Reverse Duplicate Entries: If a duplicate is found, you may need to reverse or delete the duplicate entry using transaction FB08 (Reverse Document) or FBRA (Reset Document).
  Check Document Number Ranges: Ensure that the document number ranges are correctly configured in the system. You can check this in the configuration settings under Financial Accounting.
  Review Data Migration Processes: If the issue arose during a data migration, review the migration scripts and processes to ensure that they are not creating duplicates.
  Implement Validation Checks: Consider implementing validation checks in your posting processes to prevent duplicates from being created in the future.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB03, FB02, FB08, and FBRA for managing financial documents.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional insights or solutions.
  User Authorization: Ensure that users have the appropriate authorizations to post documents, as insufficient permissions can sometimes lead to unexpected behavior.
  System Logs: Review system logs for any additional error messages or warnings that may provide context for the issue.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.