Use advanced masking when you want to apply multiple masking techniques to a column or when you want to configure multiple input and output columns in the same masking rule. You can mask all datatypes.
When you configure advanced masking, you configure the input columns, output columns, and variable columns. Variable columns are work fields that you can define to temporarily store data.
When you create the columns in the masking rule, the column names do not need to be the same as the column names in the source. When you assign the masking rule to columns, you must map the source columns to columns in the advanced masking rule.