We would like the ability to send retainer invoices based on the value of the renewal invoice that can be attached to subscription email notification workflows.
The idea is that Zoho Subscriptions does not create invoices until the subscription renewal date. However, in practice, invoices need to be sent out to clients 45, 30 or 15 days before the due date.
What we do now is to manually create Retainer Invoices on Zoho Books 45 days before the subscription renewal date. We would like this to be automated on Zoho Subscriptions and this solves the biggest voted request on Zoho Subscriptions.