How To Fix FDM_MIRROR022 - Entry &2 in table &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: FDM_MIRROR - Mirror System Messages

• Message number: 022

• Message text: Entry &2 in table &1 already exists

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 FDM_MIRROR022 - Entry &2 in table &1 already exists ?

  The SAP error message FDM_MIRROR022 indicates that there is an attempt to insert a duplicate entry into a table where a unique constraint is enforced. Specifically, the message states that an entry with the key value &2 already exists in the table &1. This typically occurs in the context of data migration or data replication processes, such as when using the Financial Data Management (FDM) module.
  Cause:
  
  Duplicate Data: The most common cause is that the data being processed contains duplicates that violate the unique constraints of the target table.
  Incorrect Data Load Logic: The logic used to load or transform data may not be correctly handling existing records, leading to attempts to insert duplicates.
  Concurrency Issues: If multiple processes are trying to insert the same data simultaneously, it can lead to this error.
  Data Migration Issues: During data migration, if the same data is being migrated multiple times without proper checks, this error can occur.
  
  Solution:
  
  Check for Duplicates: Before attempting to insert data, check the source data for duplicates. Ensure that the data being loaded does not already exist in the target table.
  Modify Load Logic: Adjust the data load logic to handle existing records appropriately. This may involve updating existing records instead of inserting new ones or skipping records that already exist.
  Use Upsert Logic: If applicable, implement an "upsert" (update or insert) logic that will update existing records if they are found, or insert them if they are not.
  Review Data Migration Process: If this error occurs during a data migration, review the migration process to ensure that it is not attempting to load the same data multiple times.
  Error Handling: Implement error handling in your data processing logic to catch and log these types of errors for further analysis.
  
  Related Information:
  
  Transaction Logs: Check transaction logs or error logs to identify the specific entries causing the issue.
  Unique Constraints: Review the unique constraints defined on the target table to understand what fields are causing the conflict.
  SAP Notes: Look for relevant SAP Notes that may provide additional insights or patches related to this error.
  Testing: Conduct thorough testing in a development or QA environment to replicate the issue and validate the solution before applying changes in production.
  
  By addressing the root cause of the duplicate entry and implementing appropriate data handling strategies, you can resolve the FDM_MIRROR022 error effectively.