Message type: E = Error
Message class:  CNV_PE_CHECK_V2 - Check Messages (Version 2020) 
Message number: 126
Message text: Rule &1 is not complete
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The SAP error message CNV_PE_CHECK_V2126, which states "Rule &1 is not complete," typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a specific rule (denoted by &1) required for the data migration process is incomplete or missing necessary components.
Cause: Incomplete Rule Definition: The rule referenced in the error message may not have all the required fields or parameters defined. This could be due to a configuration oversight or an incomplete setup during the migration project. Missing Mapping: The mapping between source and target data structures may not be fully defined, leading to incomplete rules. Data Quality Issues: If the data being migrated does not meet the expected format or criteria defined in the rules, it may trigger this error. Version Mismatch: There may be a mismatch between the version of the migration tool and the data model
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