Message type: E = Error
Message class:  CNV_PE_GEN - Messages for object generation 
Message number: 106
Message text: Exporting parameter of extension rule &1 is not an extension table
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The SAP error message CNV_PE_GEN106 indicates that there is an issue with an extension rule in the context of a data migration or conversion process, specifically that the exporting parameter of the extension rule is not recognized as an extension table. This error typically arises during the execution of a data migration project, often using SAP's tools for data conversion.
Cause: Incorrect Configuration: The extension rule may be incorrectly configured, pointing to a table that is not defined as an extension table in the system. Missing Extension Table: The extension table that the rule is trying to reference may not exist or may not be properly defined in the system. Data Model Issues: There may be inconsistencies in the data model where the extension rules are defined, leading to the system not recognizing the table as an extension. Version Compatibility: The error could also arise if there are compatibility issues between the version of the
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