Use custom 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 data types.
To create a custom masking rule, you must import the PowerCenter mapplets. Set the mapplet input columns and output columns as required. The mapplet must contain at least one input and one output column.
When you assign the custom masking rule to columns, you must map the source columns to the columns in the custom masking rule.