Hi there, quintinlieb.
If you want the third party to debit your account automatically, then the option is unavailable in QuickBooks Online. You'll want to check with your bank to see if they have the option to authorize the debit.
On the other hand, check this article on how to create a recurring template for your customers in QuickBooks Online.
Keep in touch with us if there's anything else you need help with QuickBooks.