Message type: E = Error
Message class:  CNV_NCE_BAS - Number conversion engine: messages 
Message number: 455
Message text: Subobject &1 is invalid
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The SAP error message CNV_NCE_BAS455 with the description "Subobject &1 is invalid" typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools or during the execution of a conversion program. This error indicates that the specified subobject (denoted by &1) is not recognized or is invalid in the context of the operation being performed. Causes: Incorrect Subobject Name: The subobject specified in the operation may be misspelled or does not exist in the system.
Configuration Issues: The subobject may not be properly configured in the system, leading to its invalid status. Data Migration Settings: If you are using a migration tool, the settings or mappings may not be correctly defined, causing the tool to reference an invalid subobject. Version Compatibility: The subobject may not be supported in the version of SAP you are using, especially if you are migrating from an older version. Solutions: Verify Subobject Name: Check the spelling and ensure
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