Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 252
Message text: Source Acct ID (CoCd &1, house bank &2, Acct ID &3) with missing target
Source house bank account ID (company code &V1&, house bank &V2&,
account ID &V3&) with missing target value.
Error
Provide a suitable mapping for house bank account ID's.
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_CHECK252 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a missing target account for a source account in the context of financial data migration.
Cause: The error message indicates that for a specific source account (identified by Company Code, House Bank, and Account ID), there is no corresponding target account defined in the system. This can happen due to several reasons: Missing Mapping: The mapping between source and target accounts has not been defined correctly in the migration settings. Data Inconsistency: The source data may have inconsistencies or missing entries that prevent the system from finding a corresponding target account.
Configuration Issues: The target system may not have been configured to accept the source account data, or the necessary target accounts have not been created.
Solution: To resolve this error, you can follow these steps: Check Mapping
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