Message type: E = Error
Message class:  CNV_DMC_SIN - Messages for s-innovations migration 
Message number: 434
Message text: Group currency '&1' deviated from currency '&2' deposited in system.
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The SAP error message CNV_DMC_SIN434 indicates that there is a discrepancy between the group currency and the local currency in the system. This typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or during the SAP S/4HANA conversion.
Cause: Currency Configuration Mismatch: The group currency defined in the system does not match the local currency for the financial documents being processed. Data Migration Issues: During data migration, the currency settings for the source and target systems may not align, leading to inconsistencies. Incorrect Master Data: The master data (like customer/vendor records) may have been set up with incorrect currency settings. Inconsistent Currency Settings: Different company codes may have different currency settings, leading to conflicts when trying to consolidate data.
Solution: Check Currency Settings: Verify the currency settings in the configuration of the company code and ensure that the group currency is correctly defined. Use transaction code OB22 to check and adjust
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