If you want to apply a code that is normally used as a conversion to the data before a correlative operation is carried out, place the conversion code in line 8 before the correlative code. Separate the codes with a value mark (CTRL+]). This way the correlative is applied to formatted data rather than to raw data.
For example, a D code could first convert a date to external format. Then a G correlative could extract one or more fields from within the delimiters defined for the date by the D conversion.
See Also
Using Correlatives as Conversions and Vice Versa
Using Special Functions with A and F Codes
Using Conversion Codes Within a Correlative