How To Fix IU056 - <<< & candidates were deleted because of key field changes

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 056

• Message text: <<< & candidates were deleted because of key field changes

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 IU056 - <<< & candidates were deleted because of key field changes ?

  The SAP error message IU056 indicates that certain candidates were deleted due to changes in key fields. This typically occurs in the context of SAP's Integrated Business Planning (IBP) or other modules where data integrity is crucial, and changes to key fields can affect the relationships and validity of the data.
  Cause:
  
  Key Field Changes: The error arises when there are modifications to key fields (like IDs or primary keys) that are essential for identifying records. If these fields are altered, the system may determine that the existing records are no longer valid or relevant.
  Data Consistency: SAP enforces data consistency rules, and if a key field change leads to inconsistencies, the system may automatically delete the affected records to maintain integrity.
  Data Uploads or Migrations: This can also happen during data uploads or migrations where the incoming data has different key field values than those already present in the system.
  
  Solution:
  
  Review Key Field Changes: Investigate the changes made to the key fields. Ensure that any modifications are necessary and that they do not conflict with existing records.
  Data Validation: Before making changes, validate the data to ensure that it adheres to the expected formats and relationships. This can help prevent unintended deletions.
  Backup Data: Always back up your data before making significant changes. This allows you to restore records if necessary.
  Adjust Data Load Processes: If the error occurs during data uploads, review the data load processes to ensure that they are correctly configured to handle key field changes.
  Consult Documentation: Refer to SAP documentation or support for specific guidelines on handling key field changes in your particular module or version of SAP.
  Engage SAP Support: If the issue persists or if you need further assistance, consider reaching out to SAP support for help in diagnosing and resolving the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to data management in your SAP environment, such as SE11 (Data Dictionary) or SE16 (Data Browser), to analyze the affected tables.
  Change Logs: Review change logs to understand what modifications were made to the key fields and by whom, which can help in troubleshooting the issue.
  
  By following these steps, you can better understand the cause of the IU056 error and take appropriate actions to resolve it.