Message type: E = Error
Message class:  CNV_10520 - Conversion module of FI-CA FIKEY-logic 
Message number: 039
Message text: The field &1 not found in the table DFKKSUMC
The field &V1& could not be found in the table DFKKSUMC. This means that
the enhancemet provided by FI-CA was not implemented in the system.
Error message is issued.
Install appropriate FI-CA note or contact SAP for support.
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.
The SAP error message CNV_10520039 indicates that a specific field (denoted by &1) is not found in the table DFKKSUMC. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during system upgrades.
Cause: Field Removal or Renaming: The field that the system is trying to access may have been removed or renamed in a newer version of the SAP system. Incorrect Mapping: During data migration, the mapping of fields from the source system to the target system may not be correctly defined, leading to attempts to access non-existent fields. Custom Modifications: If there are custom developments or modifications in the system, it may lead to discrepancies in the expected database schema. Data Model Changes: Changes in the data model due to updates or enhancements in the SAP system can also lead to this error.
Solution: Check Field Existence: Verify if the field mentioned in the error message actually
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