Hello Lissa
in general finance charge memo are issuing for entries that are already overdue, no finance charge memos are suggested for entries that are not yet overdue
In the finance charge memo terms you can tell the system for which entries you would like to calculate the finance charge memo and also add a grace period an so on
Anyway if you want to run the finance charge memo creation for all customer you just need to navigate to finance charge memo, select the function create finance charge memo and add the posting date for it
You can also add a filter for specific customer if you want, otherwise the system will suggest finance charge memo for all the overdue entries for all customers
