Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 487
Message text: Specify a source determination object before saving
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The SAP error message CNV_10020487 indicates that a source determination object has not been specified in the context where it is required. This error typically occurs during data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
Cause: The error arises when the system expects a source determination object (which defines the source of the data to be migrated or converted) to be specified, but it has not been provided. This could happen due to: Incomplete Configuration: The necessary configuration for the source determination object has not been completed. User Input Error: The user may have overlooked entering the required information in the relevant fields. System Bug: In some cases, there may be a bug or issue in the version of the software being used.
Solution: To resolve this error, you can follow these steps: Check Configuration: Ensure that the source determination object
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