How To Fix CNV_20800075 - The scenario is N:1 merge of customer numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 075

• Message text: The scenario is N:1 merge of customer numbers

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800075 - The scenario is N:1 merge of customer numbers ?

  The SAP error message CNV_20800075 typically occurs during data migration or conversion processes, particularly when merging customer numbers in a scenario where multiple customer records are being consolidated into a single record (N:1 merge). This error indicates that there are issues with the data being processed, which can arise from various causes.
  Causes of the Error
  
  
  Data Inconsistencies: There may be inconsistencies in the customer data being merged, such as duplicate entries, missing mandatory fields, or conflicting information across the records.
  
  
  Mapping Issues: The mapping of fields from the source system to the target system may not be correctly defined, leading to errors during the merge process.
  
  
  Business Rules Violations: The merge process may violate certain business rules or constraints defined in the target system, such as unique constraints on customer numbers.
  
  
  Configuration Errors: Incorrect configuration settings in the migration tool or the SAP system can lead to this error.
  
  
  Data Quality Issues: Poor data quality, such as incorrect formats or invalid values, can also trigger this error.
  
  
  Solutions
  
  
  Data Cleansing: Review and clean the customer data before the merge. Ensure that there are no duplicates, and that all mandatory fields are filled out correctly.
  
  
  Review Mapping: Check the mapping of fields between the source and target systems. Ensure that all necessary fields are correctly mapped and that there are no discrepancies.
  
  
  Check Business Rules: Verify that the merge process adheres to all business rules and constraints defined in the target system. Adjust the merge logic if necessary.
  
  
  Configuration Review: Review the configuration settings of the migration tool and the SAP system to ensure they are set up correctly for the merge process.
  
  
  Error Logs: Check the error logs for more detailed information about the specific records causing the issue. This can help identify the root cause of the problem.
  
  
  Testing: Conduct thorough testing of the merge process with a smaller dataset to identify potential issues before executing the full migration.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the CNV_20800075 error for any specific guidance or updates that may apply to your situation.
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  Migration Tools: If you are using specific SAP migration tools (like SAP S/4HANA Migration Cockpit), consult the documentation for those tools for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can share their solutions.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the CNV_20800075 error and successfully complete the N:1 merge of customer numbers.