Message type: E = Error
Message class:  CNV_MBT_46 - PCL message class 
Message number: 090
Message text: Similar parameters declared more than once; edit again
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The SAP error message CNV_MBT_46090 indicates that there are multiple declarations of the same parameter in a configuration or migration project, which is not allowed. This error typically arises during the execution of a migration or data transfer process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
Cause: The error occurs when: The same parameter is defined more than once in the migration settings or configuration. There may be duplicate entries in the mapping or transformation rules. The configuration file or settings might have been incorrectly edited or imported, leading to redundancy.
Solution: To resolve the error CNV_MBT_46090, follow these steps: Review the Configuration: Go through the migration or configuration settings where the error is reported. Look for any parameters that have been declared multiple times. Remove Duplicates: If you find duplicate parameters, remove the redundant entries. Ensure that each parameter is declared only once. Edit the Mapping: If the error is related to mapping or transformation rules, check the mapping definitions
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