How To Fix CNV899 - Key of errorneous entry of table (or view) &1 (see message details)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 899

• Message text: Key of errorneous entry of table (or view) &1 (see message details)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV899 - Key of errorneous entry of table (or view) &1 (see message details) ?

  The SAP error message CNV899 indicates that there is an issue with a specific entry in a table or view, which is often related to data conversion or migration processes. This error typically arises during data migration activities, especially when using tools like SAP's Data Migration Workbench or during system upgrades.
  Cause:
  
  Data Integrity Issues: The error may occur due to inconsistencies or integrity violations in the data being migrated. This could be due to missing foreign key relationships, duplicate entries, or invalid data formats.
  Configuration Errors: Incorrect configuration settings in the migration tool or in the source/target systems can lead to this error.
  Mapping Issues: If the mapping of fields between the source and target systems is not correctly defined, it can result in erroneous entries.
  Data Type Mismatches: If the data types in the source and target systems do not match, it can lead to errors during the migration process.
  
  Solution:
  
  Check the Error Details: Review the detailed error message associated with CNV899 to identify the specific table or view and the erroneous entry. This will provide insights into what went wrong.
  Data Validation: Validate the data in the source system to ensure that it adheres to the required formats and integrity constraints. Look for duplicates, missing values, or incorrect data types.
  Review Mapping Configuration: Ensure that the mapping between the source and target systems is correctly defined. Adjust any mappings that may be causing the issue.
  Adjust Configuration Settings: If applicable, review and adjust the configuration settings of the migration tool to ensure they align with the requirements of the data being migrated.
  Test Migration: Conduct a test migration with a smaller dataset to identify and resolve issues before performing a full migration.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for data migration tools and processes for more detailed guidance.
  SAP Community: Engage with the SAP Community forums to seek advice from other users who may have encountered similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with the error details and any relevant logs.
  
  By following these steps, you should be able to identify the root cause of the CNV899 error and implement a solution to resolve it.