How To Fix CNV20410042 - No table mapping found for &1 -> &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20410 - message class for package 20410 (operating concern merge)

• Message number: 042

• Message text: No table mapping found for &1 -> &2

What causes this issue?

No table mapping found for
source table: &V1&
target table: &V2&

System Response

Error

How to fix this error?

Re-execute activity 'Maintain Table and Field Mapping'.

Procedure for System Administrators

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 CNV20410042 - No table mapping found for &1 -> &2 ?

  The SAP error message CNV20410042: No table mapping found for &1 -> &2 typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion project. This error indicates that the system is unable to find a mapping for the specified source table (&1) to the target table (&2).
  Cause:
  
  
  Missing Mapping Configuration: The most common cause is that the mapping between the source and target tables has not been defined in the system. This can happen if the migration project was not set up correctly or if the necessary configuration steps were skipped.
  
  
  Incorrect Table Names: The source or target table names may be misspelled or incorrectly specified in the migration configuration.
  
  
  Version Mismatch: If you are using a different version of the migration tool or if the source and target systems are not compatible, this can lead to mapping issues.
  
  
  Custom Tables: If you are trying to migrate custom tables that do not have predefined mappings, you will encounter this error.
  
  
  Solution:
  
  
  Check Mapping Configuration: 
  
  Go to the relevant transaction or tool where the mapping is defined (e.g., LTMC for SAP S/4HANA migrations).
  Verify that the mapping for the source table (&1) to the target table (&2) exists. If it does not, you will need to create it.
  
  
  
  Create or Update Mappings:
  
  If the mapping is missing, you can create a new mapping entry. This usually involves specifying the source and target table names and defining how the fields in the source table correspond to the fields in the target table.
  
  
  
  Review Documentation: 
  
  Check the documentation for the specific migration tool you are using to ensure that you are following the correct procedures for setting up mappings.
  
  
  
  Check for Customizations: 
  
  If you are working with custom tables, you may need to manually define the mapping for these tables in the migration tool.
  
  
  
  Consult SAP Notes: 
  
  Look for any relevant SAP Notes that might address this specific error or provide guidance on how to resolve it.
  
  
  
  Testing: 
  
  After making changes to the mapping configuration, run a test migration to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Depending on the migration tool you are using, you may need to use specific transaction codes (e.g., LTMC for Migration Cockpit).
  SAP Help Portal: The SAP Help Portal provides extensive documentation on data migration and conversion processes, including how to set up mappings.
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.