Message type: E = Error
Message class:  CNV_20410_CHECK - Messages for ERKRS checks 
Message number: 096
Message text: All particip. operating concerns have the same operating concern currency
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The SAP error message CNV_20410_CHECK096 indicates that there is an issue with the operating concern currency settings in the context of a data migration or conversion process, particularly when using the SAP Conversion Tools (like the SAP S/4HANA Migration Cockpit). This error typically arises when all participating operating concerns in a migration scenario are set to the same operating concern currency, which is not allowed.
Cause: The error occurs because the system expects that the operating concerns involved in the migration or conversion process should have different operating concern currencies. If they are all set to the same currency, the system cannot proceed with the operation, leading to this error message.
Solution: To resolve this error, you can take the following steps: Check Operating Concern Settings: Go to the transaction code OKKP (or use the appropriate navigation path) to check the settings of the operating concerns involved in your migration. Verify the currency settings for each operating
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