Message type: E = Error
Message class:  CNVMBTDEX - DMIS DEX:   Data Extracts 
Message number: 019
Message text: & skip & lines & at key check
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The SAP error message CNVMBTDEX019 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with the data being processed, specifically related to the key checks for the data records being migrated.
Cause: The error message CNVMBTDEX019 can be caused by several factors, including: Missing or Invalid Keys: The data being migrated may have missing or invalid keys that do not match the expected format or values in the target system. Data Integrity Issues: There may be integrity issues in the source data, such as duplicate entries or references to non-existent records.
Configuration Issues: The migration configuration may not be set up correctly, leading to mismatches in the expected data structure. Data Type Mismatches: The data types in the source system may not align with those in the target system, causing validation errors.
Solution: To resolve the CNVMBTDEX019 error, you can take the
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