How To Fix FV135 - Header record &: List with identical key already exists in the system

SAP Error Message - Details

• Message type: E = Error

• Message class: FV - Electronic Banking Messages

• Message number: 135

• Message text: Header record &: List with identical key already exists in the system

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 FV135 - Header record &: List with identical key already exists in the system ?

  The SAP error message FV135, which states "Header record &: List with identical key already exists in the system," typically occurs in the context of financial document processing, particularly when dealing with document lists or financial statements. This error indicates that there is an attempt to create or process a header record that already exists in the system with the same key.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that there is already a header record in the system with the same key (e.g., document number, fiscal year, etc.) that you are trying to create or process.
  Data Entry Errors: Manual data entry errors can lead to the creation of duplicate records.
  System Configuration Issues: Incorrect configuration in the system settings or custom developments that do not handle duplicates properly can also lead to this error.
  Batch Processing: If you are processing multiple records in a batch, it is possible that some records are being processed more than once.
  
  Solution:
  
  Check for Existing Records: Before creating a new header record, check the database or the relevant transaction to see if a record with the same key already exists. You can use transaction codes like FB03 (Display Document) or other relevant reports to verify existing records.
  Modify the Key: If you find that a record with the same key exists and you need to create a new one, consider modifying the key (e.g., changing the document number or fiscal year) to avoid duplication.
  Data Cleanup: If duplicates are found, you may need to clean up the data by deleting or archiving unnecessary duplicate records, ensuring that only unique records remain.
  Review Custom Code: If you have custom developments or enhancements, review the code to ensure that it properly checks for existing records before attempting to create new ones.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or process you are working with for additional guidance.
  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 FB03 (Display Document), FBL1N (Vendor Line Item Display), FBL3N (G/L Account Line Item Display), and others that may help you investigate existing records.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to view and modify records in the system, as lack of permissions can sometimes lead to misleading error messages.
  
  By following these steps, you should be able to identify the cause of the FV135 error and implement a solution to resolve it.