How To Fix CNV_20800080 - The scenario is N:M for customer numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 080

• Message text: The scenario is N:M for customer numbers

What causes this issue?

It was found that a customer record appears more than once as an old
value in your mapping, which corresponds to a split scenario. In
addition, there is at least one merge of records.

System Response

Splitting customer records is not possible with the current package.

How to fix this error?

Remove the split by making sure that every customer records occurs only
once as an old value in the mapping.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800080 - The scenario is N:M for customer numbers ?

  The SAP error message CNV_20800080 typically occurs during data migration or conversion processes, particularly when dealing with customer numbers in a scenario where there is a many-to-many (N:M) relationship. This error indicates that there is an issue with the mapping or conversion of customer numbers, which can arise from various reasons.
  Cause:
  
  Data Mapping Issues: The error often arises when the mapping of customer numbers between the source and target systems is not correctly defined, leading to conflicts or duplicates.
  Duplicate Entries: If there are duplicate customer numbers in the source data that do not have a clear mapping to the target system, this can trigger the error.
  Inconsistent Data: Inconsistencies in the data format or structure between the source and target systems can also lead to this error.
  Configuration Issues: Incorrect configuration settings in the migration tool or the target system can cause issues with how customer numbers are processed.
  
  Solution:
  
  Review Mapping Configuration: Check the mapping configuration for customer numbers in the migration tool. Ensure that each customer number in the source system has a unique and valid mapping in the target system.
  Data Cleansing: Perform data cleansing on the source data to eliminate duplicates and ensure that all customer numbers are unique and correctly formatted.
  Adjust Migration Settings: If applicable, adjust the settings in the migration tool to handle N:M relationships appropriately. This may involve defining how to handle duplicates or conflicts.
  Test Migration: Conduct a test migration with a smaller dataset to identify any potential issues before performing a full migration. This can help isolate the problem.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on handling N:M relationships during data migration.
  Migration Tools: Familiarize yourself with the specific migration tool being used (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and its capabilities regarding data mapping and transformation.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the CNV_20800080 error and successfully complete the data migration process.