How To Fix CNV_10020103 - &1, SrcPack &2: SrcVal &3 assigned to more than one target => Tgt card. N

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 103

• Message text: &1, SrcPack &2: SrcVal &3 assigned to more than one target => Tgt card. N

What causes this issue?

The system found that the target values &V4& (and maybe others as well)
have the same target value &V3& assigned. This corresponds to a target
cardinality of N.
However source package &V2& requires a target cardinality of 1.

System Response

With regard to the data constellation, this path is not used in source
package &V2&.

How to fix this error?

The target cardinality of N may have been caused by irrelevant values.
If this is the case, maintain the relevance table accordingly and
repeat the check.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020103 - &1, SrcPack &2: SrcVal &3 assigned to more than one target => Tgt card. N ?

  The SAP error message CNV_10020103 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that a source value (SrcVal) from the source package (SrcPack) is being assigned to more than one target value (Tgt card), which is not allowed in the context of the migration.
  Cause:
  The error arises when:
  
  A source value is mapped to multiple target values in the migration configuration.
  There is a data integrity issue where the same source record is trying to be assigned to different target records, which can lead to conflicts or inconsistencies in the target system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration in the migration tool to ensure that each source value is uniquely mapped to a single target value. 
  If a source value legitimately needs to map to multiple target values, consider whether the mapping logic needs to be adjusted.
  
  
  
  Data Cleansing:
  
  Inspect the source data for duplicates or inconsistencies. If the same source value appears multiple times with different attributes, you may need to clean or consolidate the data before migration.
  
  
  
  Adjust Target Configuration:
  
  If the target structure allows for multiple values, you may need to adjust the target configuration to accommodate this. This could involve changing the target data model or the way data is aggregated.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the specific migration tool you are using. There may be specific guidelines or best practices for handling such scenarios.
  
  
  
  Testing:
  
  After making adjustments, perform a test migration with a smaller dataset to ensure that the changes resolve the error without introducing new issues.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific migration scenario.
  
  
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit, as it provides tools and guidelines for data migration.
  Data Mapping: Understanding how data mapping works in SAP can help prevent similar issues in the future.
  Error Logs: Check the error logs for additional context or related errors that may provide further insight into the issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully complete your data migration.