Guide

Customer Messaging Platforms to Watch in 2026

Customer messaging platforms are shifting from campaign-first tools to real-time, behavior-driven infrastructure. Heading into 2026, the platforms gaining ground prioritize API-first architecture, visual journey orchestration, and intelligent channel routing. Leaders include Courier (developer-first with visual Journeys and embedded components), Knock (workflow-first batching), Customer.io (behavioral automation), and Novu (open-source). Key trends to watch: AI-assisted content, cross-channel preference intelligence, and tighter CDP integration.

How to Use WhatsApp Typing Indicators on Twilio (Public Beta Guide)

Twilio now supports typing indicators for WhatsApp. When your backend takes a few seconds to generate a response, you can show users that something's happening instead of leaving them staring at a silent chat. The indicator appears when you call the new /v2/Indicators/Typing endpoint, automatically marks the message as read, and disappears after your response arrives or 25 seconds pass. This guide covers the API details, implementation patterns for Node.js and Python, when to use typing indicators, and current beta limitations.

Pushbullet Alternative: How to Build Cross-Device Product Messages

Pushbullet proved users demand cross-device notification intelligence. Now product teams need infrastructure to build these capabilities directly into their applications. Courier provides omnichannel messaging infrastructure with cross-channel sync, intelligent routing, multi-provider failover, and consolidated digests. Deliver notifications through 50+ providers across email, SMS, push, Slack, and in-app channels. Meet user expectations with production-ready SDKs, automated workflows, and enterprise-grade reliability.

Transactional, Product, and Marketing Notifications: What Are the Differences?

Understanding the difference between transactional, product, and marketing notifications is essential for developers building notification infrastructure. Transactional notifications confirm user actions and require no opt-in. Product notifications drive feature adoption through education. Marketing notifications promote sales and require explicit consent. This guide explains the legal requirements, best practices, and when to use each notification type to build compliant systems users trust.Retry

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.

What Is a Toast Message? Toasts vs. Snackbars, Banners & Push Notifications

Toast messages are fast and lightweight, but when should you reach for a snackbar, banner, or push notification instead? Learn to pick the right in-app pattern.

Top 10 Rules for SMS Messaging

Transactional SMS gives you 160 characters to communicate something critical, and that drops to 70 the moment an emoji or curly quote sneaks into the copy. This guide covers 10 rules for delivery confirmations, security alerts, and payment notifications: leading with the outcome, making your brand unmistakable, respecting the character limit, making the next step obvious, keeping links trustworthy, sharing just enough context, handling security scenarios, getting timing right, offering a real escape route, and building templates that survive production data. Each rule includes weak and better versions of a real message with exact character counts.

How to Embed a Template Designer into Your React Application

Multi-tenant SaaS platforms struggle with giving customers template design control without compromising security. Courier Create solves this with an embeddable React component that provides drag-and-drop editing, variable substitution, and brand customization while maintaining tenant isolation. Learn how companies like Side and Hipages benefit from customer-controlled templates, plus get setup code examples for React 18.2+ integration.

Push Notification Fallbacks: Ensuring Message Delivery with Email, Slack, SMS

Push notifications fail more often than you think - users disable them, uninstall apps, or devices go offline. Smart fallback strategies using email, SMS, and workplace chat (Slack & Microsoft Teams) ensure your critical messages always reach users. Courier's multi-channel routing automatically handles delivery failures, switching between push, email, Slack, Teams, and SMS based on your configuration. Unlike basic notification services, Courier provides intelligent timeout management, provider failover, and robust user preference management.