Message type: E = Error
Message class:  CNV_00001 - Message class for CWB settings maintenance programs 
Message number: 535
Message text: Mapping data was loaded from 000 client
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The SAP error message CNV_00001535 indicates that mapping data was loaded from the 000 client. This typically occurs during data migration or conversion processes, particularly when using SAP's Conversion Tools (like the SAP S/4HANA Migration Cockpit or other data migration tools).
Cause: Client-Specific Data: The error suggests that the mapping data being used is from the 000 client, which is the standard client in SAP systems. This client is often used for initial setups and contains default configurations and data. Incorrect Client Configuration: The mapping data should ideally come from a client that has been properly configured and contains the relevant data for the migration or conversion process. Missing Customization: If the target client (where the data is being migrated) has customizations or specific configurations, using data from the 000 client may not be appropriate.
Solution: Use the Correct Client: Ensure that the mapping data is loaded from the correct client that contains the relevant configurations
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