Finance charges in 11i versus Late charges in R12

Hi

We are re-implementing Oracle apps 12.1.3 from 11.5.9. Initially as one might except, we are doing the data migration of customers from 11i to r12.

For that, customer setups need to be created anew in r12 instance. Now my understanding is that in 11i, there were finance charges and in R12 you have late charges (and not finance charges). Since functionally, finance charges are different from late charges how can we  go about creating these setups?Definitely of course business users intervention is required and their opinions need to be taken, but I just want to elicit some inputs from Oracle gurus who have done this kind of activity before.