Question: I need a system that integrates with multiple payment providers and offers customizable email templates for billing, do you know of one?

If you're looking for a system that integrates with multiple payment providers and offers customizable email templates for billing, Billfy is a strong contender. It is designed to manage clients, automate recurring charges, and connect various payment methods. Billfy provides customizable email templates for billing, reminders, and payment links. The service supports multiple payment providers and offers a 14-day free trial to get you started.

Another option is Selldone Business OS, which is a no-code platform that helps businesses manage their operations efficiently. It supports multi-gateway payments and offers customizable checkout flows. Selldone also includes tools for marketing, sales, and analytics, making it a comprehensive solution for businesses looking to streamline their operations and grow.

OptimateAI is an all-in-one sales operations management platform that handles payments, invoices, KPI tracking, and commissions. It integrates with multiple payment methods and global currencies, making it suitable for businesses needing to manage complex payment workflows while centralizing their sales operations.

For businesses looking to modernize their notification systems, Courier is a notification API that integrates with over 50 providers and offers customizable omnichannel templates. It supports advanced user preferences and automations, which can be used to enhance the user experience and improve notification engagement.