Message type: E = Error
Message class:  CNV20201 -  
Message number: 007
Message text: Error when calling func. module CNV_00001_DESCRIBE_FIELD for field = &1
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The SAP error message CNV20201007 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there was an issue when calling the function module CNV_00001_DESCRIBE_FIELD for a specific field, which is represented by &1.
Cause: The error can be caused by several factors, including: Field Definition Issues: The field specified may not be defined correctly in the data structure or may not exist in the target system. Data Type Mismatch: There may be a mismatch between the expected data type of the field and the actual data being processed. Missing Customization: If the field is part of a custom development or enhancement, it may not be properly configured or activated in the system. Authorization Issues: The user executing the migration may not have the necessary authorizations to access the field or the function module. Transport Issues: If the system is newly upgraded
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