How To Fix CNV_20800011 - Merge to customer number &1 is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 011

• Message text: Merge to customer number &1 is not supported

What causes this issue?

It was found that you want to merge at least the customer records &V2&
and &V3& into customer record &V1&.

System Response

Merging customer records is not possible with the current package.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800011 - Merge to customer number &1 is not supported ?

  The SAP error message CNV_20800011 indicates that a merge operation for customer numbers is not supported in the context of a data migration or conversion process. This error typically arises during the execution of a data migration project, particularly when using SAP's Customer Migration Tool or similar tools.
  Cause:
  
  
  Unsupported Merge Operation: The error suggests that the system does not support merging the specified customer number (&1) with another customer number. This could be due to various reasons, such as:
  
  The customer number is locked or in use.
  The customer number is part of a configuration that does not allow merging.
  The data structure or relationships associated with the customer number do not permit merging.
  
  
  
  Data Integrity Issues: There may be data integrity constraints that prevent the merging of customer records, such as existing transactions, open orders, or other dependencies.
  
  
  Configuration Settings: The system configuration may not allow for certain types of merges, especially if they involve complex relationships or dependencies.
  
  
  Solution:
  
  
  Check Customer Status: Verify the status of the customer number you are trying to merge. Ensure that it is not locked or in use by any ongoing processes.
  
  
  Review Data Relationships: Investigate the relationships and dependencies associated with the customer number. Ensure that there are no open transactions or dependencies that would prevent the merge.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be guidelines or limitations regarding merging customer numbers.
  
  
  Use Alternative Methods: If merging is not supported, consider alternative methods for consolidating customer data, such as:
  
  Manually updating records to reflect the desired state.
  Using data transformation tools to create a new customer record that consolidates the necessary information.
  
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or the migration tool you are using.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Tools: Familiarize yourself with the specific migration tools and their limitations, as different tools may have different capabilities regarding data merging.
  Data Governance: Implement data governance practices to ensure that customer data is clean and well-structured before migration, which can help avoid such issues.
  
  By following these steps, you should be able to address the error CNV_20800011 and successfully manage your customer data migration process.