How To Fix FINS_ACDOC_POST012 - Reference number &1 &2 for process &3 not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: FINS_ACDOC_POST - FIN UDoc posting: Message from posting

• Message number: 012

• Message text: Reference number &1 &2 for process &3 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 FINS_ACDOC_POST012 - Reference number &1 &2 for process &3 not unique ?

  The SAP error message FINS_ACDOC_POST012 typically indicates that there is a problem with the uniqueness of a reference number in the context of posting accounting documents. This error occurs when the system finds multiple entries that match the reference number provided, which should be unique for the specific process being executed.
  Cause:
  
  Duplicate Reference Numbers: The most common cause of this error is that there are duplicate entries in the database for the reference number specified in the posting process. This can happen if the same reference number is used for multiple transactions or if there are issues with the data entry process.
  Incorrect Configuration: There may be configuration settings in the system that do not enforce uniqueness properly, leading to the creation of duplicate entries.
  Data Migration Issues: If data was migrated from another system, it is possible that duplicate reference numbers were introduced during the migration process.
  Concurrency Issues: If multiple users are trying to post documents simultaneously with the same reference number, it can lead to this error.
  
  Solution:
  
  Check for Duplicates: Investigate the database for existing entries with the same reference number. You can use transaction codes like SE16 or SE11 to check the relevant tables (e.g., BKPF for accounting document headers).
  Modify Reference Number: If duplicates are found, consider changing the reference number for the new posting to ensure it is unique.
  Review Configuration: Check the configuration settings in the system to ensure that they are set up to enforce uniqueness for reference numbers.
  Data Cleanup: If duplicates were introduced during data migration, you may need to clean up the data to remove or consolidate duplicate entries.
  Consult Documentation: Review SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  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 FB01 (Post Document), FB02 (Change Document), and FB03 (Display Document) to manage accounting documents.
  Tables: Understand the structure of relevant tables like BKPF (Accounting Document Header) and BSEG (Accounting Document Segment) to analyze the data.
  SAP Notes: Search for SAP Notes related to FINS_ACDOC_POST012 for any known issues or fixes.
  User Exits and BAdIs: If custom logic is involved in the posting process, review any user exits or BAdIs that might affect how reference numbers are generated or validated.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.