How To Fix FN512 - There is at least one BSEG line missing (line item)

SAP Error Message - Details

• Message type: E = Error

• Message class: FN - BAPI Messages

• Message number: 512

• Message text: There is at least one BSEG line missing (line item)

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 FN512 - There is at least one BSEG line missing (line item) ?

  The SAP error message FN512, which states "There is at least one BSEG line missing (line item)," typically occurs during financial document processing, particularly when dealing with accounting entries. This error indicates that the system expects to find a corresponding line item in the BSEG table (the line item table for accounting documents) but cannot find it.
  Causes:
  
  Missing Line Item: The most common cause is that a line item that should exist in the BSEG table is missing. This can happen due to data inconsistencies or errors during document posting.
  Document Deletion: If a document was deleted or not posted correctly, it may lead to missing line items.
  Inconsistent Data: If there are inconsistencies in the data being processed (e.g., incorrect references or missing entries), it can trigger this error.
  Custom Code Issues: If there are custom programs or enhancements that manipulate accounting documents, they may inadvertently cause missing line items.
  
  Solutions:
  
  Check Document Status: Verify the status of the document in question. Ensure that it has been posted correctly and that all line items are present.
  Repost the Document: If the document is found to be incomplete or incorrectly posted, consider reposting it. This may involve reversing the original document and creating a new one.
  Data Consistency Check: Use transaction codes like SE16 or SE11 to check the BSEG table for the relevant document number. Ensure that all expected line items are present.
  Use SAP Standard Reports: Utilize standard SAP reports to identify any inconsistencies in financial documents. Reports like FBL1N, FBL3N, or FBL5N can help in reviewing line items.
  Debugging: If the issue persists, consider debugging the process to identify where the line item is being lost. This may require technical expertise.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error.
  
  Related Information:
  
  BSEG Table: This table contains line item details for accounting documents. Each entry corresponds to a line item in a financial document.
  Transaction Codes: Familiarize yourself with transaction codes like FB03 (Display Document), FB02 (Change Document), and FB01 (Post Document) for managing financial documents.
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance, especially if it appears to be a bug or a more complex issue.
  
  By following these steps, you should be able to diagnose and resolve the FN512 error in SAP.