How To Fix CNV_40301017 - Mapping values result in temporary duplicates

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_40301 - Message class for package 40301 (KTOGR)

• Message number: 017

• Message text: Mapping values result in temporary duplicates

What causes this issue?

Mapping values result in <DS:TX.CNV_MBT_TEMP_DUPLICATES>temporary
duplicates</>.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_40301017 - Mapping values result in temporary duplicates ?

  The SAP error message CNV_40301017 indicates that during a data migration or conversion process, the mapping of values has resulted in temporary duplicates. This typically occurs in scenarios where data is being transformed or migrated from one system to another, and the mapping logic does not ensure uniqueness for certain fields.
  Cause:
  
  Duplicate Mapping Logic: The mapping rules defined for the data conversion may not account for existing duplicates in the source data or may inadvertently create duplicates in the target system.
  Data Quality Issues: The source data may contain duplicates that are not being handled correctly during the mapping process.
  Incorrect Configuration: The configuration settings for the data migration tool may not be set up to handle unique constraints properly.
  
  Solution:
  
  Review Mapping Rules: Check the mapping rules defined in the data migration tool. Ensure that they are set up to prevent duplicates. You may need to adjust the logic to ensure that each value maps to a unique target value.
  Data Cleansing: Before running the migration, perform data cleansing on the source data to remove or consolidate duplicates. This can involve deduplication processes or merging records that should be unique.
  Adjust Configuration: Review the configuration settings of the migration tool to ensure that it is set to enforce uniqueness where required. This may involve setting up unique keys or constraints in the target system.
  Testing: Conduct thorough testing of the mapping process with a subset of data to identify and resolve any potential duplicates before executing the full migration.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for additional guidance on handling duplicates.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error message.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration, including data profiling, cleansing, and validation techniques.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By addressing the root causes and implementing the suggested solutions, you should be able to resolve the CNV_40301017 error and successfully complete your data migration process.