About OneSignal REST API
OneSignal REST API is a notification platform that enables businesses to send push notifications, emails, and SMS at scale. It provides programmatic access to user management, subscription controls, and multi-channel campaign orchestration.
Saysimple customers use this integration to centralize customer communication: trigger OneSignal notifications when handling WhatsApp conversations, sync opted-in contacts between platforms, and ensure consistent messaging across all channels. This eliminates manual notification workflows and keeps customers informed through their preferred channels—whether that's WhatsApp, email, or push—all coordinated from Saysimple's shared inbox.
Popular use cases
Appointment Reminders Across Channels
Healthcare and professional services teams can automate appointment reminders: when a booking is confirmed in Saysimple, trigger a OneSignal notification that sends reminders via WhatsApp, email, and SMS simultaneously. Customers receive timely updates on their preferred channel, reducing no-shows and manual reminder work.
Order Status Updates for E-Commerce
Retail and e-commerce businesses can notify customers about order milestones through OneSignal while managing conversations in Saysimple. When an order ships or is ready for pickup, send notifications via WhatsApp and email from OneSignal, then handle customer follow-ups and questions in Saysimple's unified inbox.
Re-engagement Campaigns with Conversation Context
Use Saysimple's customer data to segment audiences in OneSignal and send targeted re-engagement campaigns via WhatsApp or email. Agents can then follow up on responses directly in Saysimple's shared inbox, creating a seamless workflow from notification to personalized conversation.
