Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 616
Message text: Secondary cost element &1 &2 was maintained in mapping table for accounts
The system found that the mapping table for G/L accounts/ primary cost
elements contains the secondary cost element &V1& &V2&.
This is not allowed, because in this case it is not possible to do all
necessary checks, and errors may occur in the <ZK>Conversion</> phase.
Maintain the mapping for G/L accounts / primary cost elements in the
mapping table for G/L accounts and primary cost elements and the mapping
for secondary cost elements in the mapping table for secondary cost
elements.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20100616 indicates that there is an issue related to the mapping of secondary cost elements in the context of a data migration or conversion process. This error typically arises during the execution of a migration project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: The error message suggests that a secondary cost element (identified by &1 and &2) has been maintained in the mapping table but is not correctly configured or is missing necessary information. This can occur due to several reasons: Incorrect Mapping: The mapping table may have incorrect entries or may not include all necessary secondary cost elements. Missing Configuration: The secondary cost element may not be properly configured in the system, leading to inconsistencies. Data Integrity Issues: There may be issues with the data integrity in the source system, causing the migration tool to fail in recognizing the secondary cost elements.
Solution: To resolve the CNV_20100616
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