Note 1269062.1 - System Options Trans/Customers Late Charge Batch Source Name

Upgraded from 11i to R12 and setting up Late Charges in R12.

Late Charges in the system are documented as  Adjustments verses Interest Invoice. Hence  Per 1269062.1 , in Step a. Define Organizational Late Charge Policy, is it okay that the "Interest Invoice Transaction type " filed is blank ?  What about the "Late Charge Batch Source" - shouldn't that be blank as well?

Please advise.