Message type: E = Error
Message class:  CNV_CMIS_A_20_FUNC - Message texts for CNV_CMIS_A_20 function modules 
Message number: 002
Message text: Data element &1 does not exist; enter a valid data element
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The SAP error message CNV_CMIS_A_20_FUNC002 indicates that a data element specified in a conversion or migration process does not exist in the system. This error typically arises during data migration activities, especially when using tools like SAP's Conversion and Migration Information System (CMIS).
Cause: Non-Existent Data Element: The data element specified in the migration or conversion process is not defined in the SAP system. Typographical Error: There may be a typo in the name of the data element being referenced. Incorrect Configuration: The configuration settings for the migration process may be incorrect, leading to the reference of an invalid or non-existent data element. Missing Transport: The data element may exist in a different system or client but has not been transported to the current environment.
Solution: Verify Data Element: Check the spelling and ensure that the data element exists in the SAP system. You can do this by using transaction code SE11 (Data Dictionary) to search for
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