Considering the situation described above, the recurring transaction you set up for this invoice should be set to "Reminder."
This is because setting the invoice in the Reminder would let the customers be aware of when to make the recurrent pay for the monthly maintenance services or to let the customer be aware that they missed an invoice.
The invoice reminder is expected to have the following details:
Hence, in this case, it is concluded that the correct answer is "Reminder."
Learn more here: https://brainly.com/question/23215395