We have recurring customer invoices that we need to migrate into NS. These are going to be memorized transactions then. It seems like it's not possible to import memorized transactions. Is it possible via script? Also, do we also need to create an actual Customer Invoice before we can memorize it? We can't just create a memorized template?

you need to import transactions with the remaining balance to invoice and billing schedule. Then it will be billed systematically per billing schedule

@Karina we aren't actually using sales orders (just stand-alone invoices), so there won't be billing schedules

yes, i understand that, and this is the way to get those invoices billed as you need them; not as a future process, but data migration method

Thank you, @Karina