How To Fix CNV_20340_CHECK007 - Double mapping entry provided for source COAr &1 cycle &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20340_CHECK - Message Class for 20340 Checks

• Message number: 007

• Message text: Double mapping entry provided for source COAr &1 cycle &2

What causes this issue?

A source value is mapped to multiple target values. To run the
transformation solution, all source mapping values must have exactly one
target value.
You cannot run the transformation solution Controlling Area Merge
because certain prerequisites have not been met. Please change your
mapping accordingly.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20340_CHECK007 - Double mapping entry provided for source COAr &1 cycle &2 ?

  The SAP error message CNV_20340_CHECK007 indicates that there is a double mapping entry for a source object in the context of a cycle in a conversion or migration process. This typically occurs during data migration activities, especially when using SAP's Conversion Tools or during the SAP S/4HANA migration process.
  Cause:
  The error arises when the system detects that there are multiple mapping entries for the same source object (in this case, a COAr - which usually refers to a cost object or cost center) for a specific cycle. This can happen due to:
  
  Duplicate Entries: There are duplicate entries in the mapping table for the same source object and cycle.
  Incorrect Configuration: The mapping configuration may have been set up incorrectly, leading to multiple mappings for the same source.
  Data Integrity Issues: There may be issues with the data being migrated, such as inconsistencies or errors in the source data.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Entries:
  
  Go to the mapping table where the entries are defined.
  Look for duplicate entries for the specified source object (COAr) and cycle.
  Remove or correct any duplicate entries to ensure that each source object has a unique mapping.
  
  
  
  Review Configuration:
  
  Review the configuration settings for the mapping process to ensure that it is set up correctly.
  Ensure that the mapping logic does not inadvertently create duplicates.
  
  
  
  Data Validation:
  
  Validate the source data to ensure there are no inconsistencies or errors that could lead to duplicate mappings.
  Clean up the source data if necessary.
  
  
  
  Re-run the Migration:
  
  After making the necessary corrections, re-run the migration or conversion process to see if the error persists.
  
  
  
  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 might address this specific error or provide additional context.
  Migration Tools: Familiarize yourself with the specific migration tools and processes you are using, as they may have specific requirements or configurations.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support for further assistance.