Source
Code Conversion - General Issues
This issue occurs when there is an error while parsing the source code that is being converted. It means there is a source code syntax error or a specific statement of the code is not being recognized yet.
Code Conversion - General Functional Differences
This message is reported when a Correlated Subquery (subquery that refers to a column from the outer query) is located. This type of subqueries can, in some cases, present some functional differences in Snowflake (Working with Subqueries).