How To Fix 28455 - Inconsistency (contradiction) inferred

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 455

• Message text: Inconsistency (contradiction) inferred

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 28455 - Inconsistency (contradiction) inferred ?

  The SAP error message 28455, which states "Inconsistency (contradiction) inferred," typically occurs in the context of SAP's data consistency checks, particularly in modules like SAP ERP or SAP S/4HANA. This error indicates that there is a contradiction in the data that the system is trying to process, which prevents the transaction from being completed successfully.
  Causes:
  
  Data Inconsistency: The most common cause is that there are conflicting entries in the database. This could be due to manual data entry errors, incorrect data migration, or issues during data updates.
  Configuration Issues: Incorrect configuration settings in the system can lead to inconsistencies, especially if certain dependencies or relationships between data elements are not properly defined.
  Business Logic Violations: The error may arise if the business rules defined in the system are violated, such as trying to post a transaction that does not meet the required conditions.
  Missing Master Data: If the necessary master data (like customer, vendor, or material master) is missing or incomplete, it can lead to inconsistencies when trying to process transactions.
  
  Solutions:
  
  Data Review: Check the relevant data entries for inconsistencies. This may involve reviewing transaction data, master data, and configuration settings to identify any discrepancies.
  Transaction Logs: Review transaction logs or error logs to get more details about what specifically triggered the error. This can provide insights into which data elements are causing the issue.
  Consistency Checks: Use SAP's built-in tools for data consistency checks. For example, transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) can help you analyze the data tables involved.
  Reprocessing: If the error occurred during a batch process or data upload, consider reprocessing the data after correcting any identified issues.
  Consult Documentation: Refer to SAP Notes or documentation related to the specific module you are working with. There may be known issues or patches available that address this error.
  Engage Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal IT team for further assistance.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide guidance on similar issues.
  Transaction Codes: Familiarize yourself with transaction codes that can help in troubleshooting, such as ST22 (Dump Analysis), SM21 (System Log), and SLG1 (Application Log).
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.