Message type: E = Error
Message class:  CNV20305 - Messages for conversion packages in CO 
Message number: 655
Message text: Error during upload
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The SAP error message CNV20305655 typically occurs during data upload processes, particularly in the context of data migration or conversion projects. This error is part of the SAP Conversion and Migration tools, which are used to transfer data from legacy systems to SAP systems.
Cause: The error CNV20305655 can be caused by several factors, including: Data Format Issues: The data being uploaded may not conform to the expected format or structure required by the target SAP system. Missing Required Fields: Certain mandatory fields may be missing in the data being uploaded, leading to validation errors. Data Type Mismatches: There may be discrepancies between the data types in the source and target systems (e.g., trying to upload a string where a numeric value is expected). Authorization Issues: The user performing the upload may not have the necessary permissions to execute the upload process. Technical Errors: There could be underlying technical issues, such as database connectivity problems or issues
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