Integrations

How to Design an In-App Notification Center: UX tips and examples

A design-focused guide to building an in-app notification center people actually use. Covers the UX decisions that matter (entry point, information hierarchy, read state, grouping, empty states, inline actions, real-time, accessibility), then shows three ways to execute in Courier Inbox: brand-match with a theme, take over individual pieces with render props, or go fully headless with the `useCourier` hook. Ends with a pre-ship checklist.

The Future-Proof Multichannel Notification System: Built for Humans and AI Agents

Multichannel delivery is now table stakes. In an AI world, future-proof means a notification system both your team and AI agents can build and run.

Design Studio + Journeys: The Engineering Integration Guide

This is the engineering guide for setting up Design Studio and Journeys. When you move notification logic to Courier, your architecture shifts from a push model to an event model. Your backend stops rendering templates and managing provider APIs directly, and starts emitting events. This guide covers both integration paths (direct API and Segment), how to structure the data object so PMs can build without asking for backend changes, error handling and idempotency, how to use test environments safely, and the specific code you can delete from your repo once it's running.

Notification Observability: How to Monitor Delivery, Engagement, and Provider Health

Notification observability is the practice of monitoring notification delivery, engagement, and provider health using the same tools and discipline you apply to the rest of your application infrastructure. It means tracking whether messages are delivered, opened, and acted on across email, SMS, push, and in-app channels, then surfacing that data in dashboards alongside your other application metrics. Key metrics include delivery rate by channel, bounce and failure rates, provider latency, open rate trends, and click-through rates by template. Teams can build notification observability through DIY webhook handlers that pipe provider events to Datadog or Prometheus, log aggregation from application send logs, or notification platforms with built-in observability integrations. This matters most for multi-channel systems, business-critical notifications like password resets and payment confirmations, and teams using multiple providers with fallback routing.

Multichannel Notification Template Management: Version Control, Migration, and Cross-Channel Previews

AI agents are reshaping how products communicate with users. By 2026, 40% of enterprise applications will embed agents that need to send notifications across email, SMS, push, Slack, Teams, and in-app channels autonomously. Managing templates across all these channels with Git-based workflows doesn't scale. This guide covers how teams handle version control and rollback for multichannel templates, which platforms enable designer collaboration without deploys, whether Figma design systems can connect to notification builders, how to migrate templates using APIs and MCP-assisted workflows, how to preview messages across channels side-by-side, open-source options that integrate with SendGrid, Twilio, Firebase, and Slack, and how to localize content from one dashboard. Platforms covered include Courier, Novu, Knock, SuprSend, Dyspatch, Email Love, and React Email.

Transactional Email Services Compared: 8 Options

Transactional emails are the messages your users are waiting for: password resets, order confirmations, shipping updates, and two-factor codes. They're triggered by user actions and need to arrive fast. Gmail, Yahoo, and Outlook now enforce SPF, DKIM, and DMARC on bulk senders, so your email provider matters more than it used to. Here are 8 options compared: Courier for multi-channel orchestration across email, SMS, push, and Slack. SendGrid for scale and analytics. Postmark for speed and published delivery data. Resend for React/Next.js teams. Amazon SES for cost-conscious AWS shops. Plus Mailgun, Mailtrap, and SMTP2GO. Building a product whose notifications will span multiple channels? Start with Courier. Only need email? Pick by speed, scale, cost, or developer experience.

React Native push notifications: FCM and Expo guide

React Native lets you ship to iOS and Android from one codebase, but push notifications still require platform-specific infrastructure. This guide covers implementing push with Firebase Cloud Messaging (FCM) for bare React Native and Expo Push for managed workflows. Both get basic push working, but production apps quickly hit limitations: no delivery confirmation, no fallback channels, no user preferences, and debugging is guesswork. Learn why you'd add a notification orchestration layer to handle token lifecycle, multi-channel coordination, user preferences, and delivery observability. Includes code examples for authentication, in-app inbox components, preference centers, and multi-channel routing with automatic fallbacks.

Twilio Integrations with Courier: SMS, SendGrid, Segment

Twilio owns critical notification infrastructure: SMS in 180+ countries, SendGrid for email at scale, and Twilio Segment for customer data. Using them together means maintaining three APIs, three credential sets, and zero coordination between channels. Courier gives you a single integration point for all three Twilio products. Connect your accounts, use one API to send across SMS and email, start journeys from Twilio Segment events, and orchestrate multi-channel delivery with routing rules and failover built in.

How to Build a Notification Center for Web & Mobile

A notification center is a familiar pattern (a bell, an unread count, a feed) sitting on a deeper system of real-time delivery, cross-device state, and storage. This guide covers how one works, how to build it with React and React Native, and how to decide whether to build or buy.