How To Fix FTR_AU019 - Instance of class &1 not unique; key &2 chosen

SAP Error Message - Details

• Message type: E = Error

• Message class: FTR_AU - Messages for unit tests

• Message number: 019

• Message text: Instance of class &1 not unique; key &2 chosen

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 FTR_AU019 - Instance of class &1 not unique; key &2 chosen ?

  The SAP error message FTR_AU019 indicates that there is an issue with the uniqueness of an instance of a class in the context of financial transactions, particularly in Asset Accounting (FI-AA) or related modules. The message states that the instance of class &1 is not unique, and it specifies the key &2 that was chosen.
  Cause:
  This error typically occurs when the system encounters multiple instances of a class that match the criteria defined by the key. In other words, the system is trying to identify a specific instance of a class (like an asset or a financial transaction), but it finds more than one instance that fits the criteria, leading to ambiguity.
  Possible Causes:
  
  Duplicate Entries: There may be duplicate entries in the database for the specified class.
  Incorrect Configuration: The configuration settings for the class or the key may not be set up correctly, leading to multiple valid instances.
  Data Integrity Issues: There may be issues with data integrity, such as incomplete or incorrect data entries.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to check the relevant database tables for duplicate entries that correspond to the class and key mentioned in the error message.
  Identify and resolve any duplicates by either deleting or merging them as appropriate.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the class in question. Ensure that the settings are correct and that they enforce uniqueness where necessary.
  If applicable, review the customizing settings in the Asset Accounting module to ensure that they are set up correctly.
  
  
  
  Data Cleanup:
  
  If duplicates are found, perform a data cleanup to ensure that only unique instances exist in the system.
  You may need to consult with your data management team or use data migration tools to assist with this process.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific class and key to understand any known issues or additional configuration requirements.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking for duplicates and reviewing configurations, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: SE16 (Data Browser), SE11 (Data Dictionary), and possibly transaction codes related to Asset Accounting (e.g., AS01, AS02).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for documentation on Asset Accounting and the specific classes involved.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.