If SSIS-965 appears in an error message during package execution, it could be a custom error code specific to your SSIS project or organization. Microsoft SQL Server typically uses 16-bit error codes like 0x80040E14 or 0xC020200E , but some applications or scripts might use numeric IDs for internal logging.
Solving the Integration Puzzle: Troubleshooting Complex SSIS Execution Failures SSIS-965