Message type: E = Error
Message class:  CNV20200 - Messages for development class CNV_20200 
Message number: 638
Message text: Changes in CoCd mapping or customizing, mapping is re-generated
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The SAP error message CNV20200638 typically relates to issues encountered during the mapping of company codes (CoCd) in the context of data migration or system conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
Cause: The error message CNV20200638 indicates that there have been changes in the company code mapping or customizing settings. This can occur due to: Changes in Configuration: If there have been recent changes to the company code settings or mappings in the system, the migration tool may detect inconsistencies. Re-Generation of Mapping: The mapping for company codes may need to be regenerated due to changes in the underlying data or configuration. Inconsistent Data: If the data being migrated does not align with the current mapping or if there are discrepancies in the source and target systems, this error can arise.
Solution: To resolve the CNV20200638 error, you can follow these steps: Review
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