Best way to cancel recurring payments?

I have a set of recurring monthly payments that need to be canceled because I set them up incorrectly a few months ago. It was my first time adding a one-time fee to the first payment, so instead of the system collecting 8 total payments, it collected the first as a "trial payment" and then 8 more (so 9 total). Because the first sign-up was late August, I have several subscribers that have already completed 8 payments and are coming up on the 9th due date. What's the best way to cancel the 9th payment without making the subscription inactive? Is it possible to do this through the Membership Pro dashboard, or should I cancel it in PayPal?

Thank you! Do you know which email message is generated when you do this? I’d like to edit the template to apologize for the error so they don’t get confused.