Best practice for sending a notice about an upcoming recurring contribution
CiviRules + emailapi extension. Scheduled reminders is too inflexible as you can't control the criteria - with CiviRules you can build in whatever conditions you like.
Looks like you'd need to add a new &quot;CRON trigger&quot; to CiviRules for recurring contributions but we already have that for activities and for memberships so would be pretty easy to do and will help a lot of people.
With that you can build &quot;reminders&quot; that can target specific paymentprocessors, specific contact types etc.