Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 246
Message text: Source value missing for (CoCd &1, new Tran.numb. &2)
Source value missing for (company code &V1&, new transaction number &V2&
).
Error
Provide a suitable mapping for cash journal business transaction
numbers.
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_20200_CHECK246 indicates that there is a missing source value for a specific company code (CoCd) and a new transaction number. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of a migration project.
Cause: Missing Data: The source value for the specified company code and transaction number is not available in the source system or the data being migrated. Incorrect Mapping: There may be an issue with the mapping of data from the source to the target system, leading to missing values. Data Preparation Issues: The data preparation phase may not have been completed correctly, resulting in incomplete or missing records.
Configuration Issues: There could be configuration settings in the migration tool that are not set up correctly, leading to this error.
Solution: Check Source Data: Verify that the source data contains the necessary values for the specified company code and transaction
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