Message type: E = Error
Message class:  CNV_20600_CHECK - Messages for Check classes 
Message number: 225
Message text: All source accounting codes exist
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The SAP error message CNV_20600_CHECK225 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 are issues with the source accounting codes in the data being processed.
Cause: The error message CNV_20600_CHECK225 suggests that the system has detected that not all source accounting codes exist in the target system. This can happen due to several reasons: Missing Master Data: The accounting codes (such as GL accounts) that are referenced in the source data do not exist in the target system. Incorrect Mapping: There may be an issue with the mapping of source accounting codes to target accounting codes, leading to discrepancies. Data Integrity Issues: The source data may have inconsistencies or errors that prevent successful migration.
Solution: To resolve the error, you can follow these steps: Check Master Data: Verify that all the accounting codes used in the source data exist in the target system.
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