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

CNV_20340_CHECK007 - Overview

• 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.

CNV_20340_CHECK007 - Details

• 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