How To Fix CNTAX_EINVC081 - Below entries cannot be migrated due to duplicate keys:

SAP Error Message - Details

• Message type: E = Error

• Message class: CNTAX_EINVC - E-invoice solution for China Tax

• Message number: 081

• Message text: Below entries cannot be migrated due to duplicate keys:

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNTAX_EINVC081 - Below entries cannot be migrated due to duplicate keys: ?

  The SAP error message CNTAX_EINVC081 indicates that there are duplicate keys in the data you are trying to migrate. This typically occurs during data migration processes, such as when using the SAP Migration Cockpit or other data transfer tools, and it prevents the system from processing the entries due to the violation of unique constraints.
  Cause:
  
  
  Duplicate Entries: The most common cause is that the data being migrated contains duplicate entries for fields that are supposed to be unique. This could be due to:
  
  Incorrect data preparation or extraction.
  Data from multiple sources being combined without proper deduplication.
  Errors in the source system that led to duplicate records.
  
  
  
  Key Fields: The specific key fields that are causing the duplication can vary depending on the context of the migration (e.g., customer numbers, invoice numbers, etc.).
  
  
  Solution:
  
  
  Identify Duplicates:
  
  Review the data set you are trying to migrate. Use tools like Excel or SQL queries to identify duplicate entries based on the key fields.
  Check the error logs or messages provided by SAP for more details on which specific keys are duplicated.
  
  
  
  Data Cleansing:
  
  Remove or consolidate duplicate entries. This may involve:
  
  Deleting unnecessary duplicates.
  Merging records if they contain complementary information.
  Ensuring that each key field has a unique value.
  
  
  
  
  
  Adjust Migration Files:
  
  After cleansing the data, adjust your migration files accordingly and ensure that they comply with the unique constraints of the target system.
  
  
  
  Re-attempt Migration:
  
  Once the duplicates have been resolved, re-attempt the migration process.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific migration tool you are using. It may provide additional insights into handling duplicate records.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration, including data profiling, cleansing, and validation techniques.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNTAX_EINVC081 error and successfully complete your data migration.