How To Fix CNV_20100222 - Error during upload: There are entries with the same key

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 222

• Message text: Error during upload: There are entries with the same key

The system checks if the table that you are uploading contains any
entries whose key also occurs in other entries. If this is the case, the
upload fails.

How to fix this error?

Remove entries with the same key prior to the upload.

System Response

entry.
For each key, the table that you want to upload must contain only one

What causes this issue?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100222 - Error during upload: There are entries with the same key ?

  The SAP error message CNV_20100222 typically occurs during data upload processes, particularly in the context of data migration or conversion projects. This error indicates that there are duplicate entries with the same key in the data being uploaded, which violates the uniqueness constraint expected by the target database table.
  Cause:
  
  Duplicate Data: The most common cause is that the source data contains duplicate records that have the same key values. This could be due to issues in the data extraction process or the source system.
  Incorrect Mapping: If the mapping of fields from the source to the target is not correctly defined, it may lead to the generation of duplicate keys.
  Data Transformation Errors: During the transformation phase, if the logic applied to the data is incorrect, it may inadvertently create duplicates.
  
  Solution:
  
  Identify Duplicates: Before uploading, analyze the source data to identify and resolve any duplicate entries. You can use tools like Excel or SQL queries to find duplicates based on the key fields.
  Data Cleansing: Cleanse the data to remove duplicates or consolidate them as necessary. This may involve merging records or deciding which record to keep based on business rules.
  Check Mapping: Review the mapping configuration to ensure that it correctly reflects the intended structure and uniqueness of the target table.
  Adjust Upload Logic: If applicable, modify the upload logic to handle duplicates appropriately, such as ignoring them or updating existing records instead of trying to insert them.
  Testing: After making changes, conduct a test upload with a smaller dataset to ensure that the issue is resolved before proceeding with the full upload.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like LSMW (Legacy System Migration Workbench), BAPIs, or other data migration tools.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review the documentation for the specific data migration tool you are using, as it may have specific guidelines for handling duplicates.
  
  By addressing the root cause of the duplicates and ensuring that your data is clean and correctly mapped, you should be able to resolve the CNV_20100222 error and successfully complete your data upload.