If you need to map fields that are identified with CF_*random letter*, you will need to create a custom field for it. We create custom fields because the CF may be different in other property types so we need to make sure we include all property types that have the field.
If you search in rope "navica" and all navica boards will be in the results.
So in this example, we will use board 71.
Say you need to map Exterior Finish.
You can see the exterior_finish mapped as a custom field. To follow
Make sure you copy the import to_list at the top and format of the if statements.
Open the RETS-MD in a different window. And click on each property type to make sure what the CF_ field is.
So if you click RRTL, you will see the exterior finish field is identified with CF_B.
So you would add it like so:
So you would do that for each property type that has the field and then you'll be all g!