Courier

Clinical alert and notification systems: how escalation works

A clinical alert is easy to send and hard to close. This is how alerting works inside a hospital: where alerts come from, how routing by role and shift works, and how the acknowledge, timeout, escalate loop is actually built, including what happens when nobody answers.

How to send Slack notifications from your app

Slack is where your customers already work, which makes it a product surface rather than only an internal alerting channel. Posting an approval request or a status change into a customer's own Slack means working in workspaces you don't own, addressing people by email rather than Slack ID, and holding a separate credential for every customer.

How Product Teams Build, Test and Ship Multichannel Notifications in Design Studio

Product teams need to build, test, and ship notifications across multiple channels without filing an engineering ticket every time. Courier's Design Studio is the workspace for that: a template builder, visual channel routing, omnichannel testing, and publishing in one place. This post walks through the traditional template designer paradigm, how it splits effort across too many tools, and outlines a path for product and growth teams to ship transactional, product, and marketing notifications from a single workspace.

EU Data Residency for Notifications: What Engineering Teams Need to Know

Courier supports EU data residency through a dedicated datacenter in AWS EU-West-1 (Ireland), with full API feature parity, same-workspace dual-region access, built-in GDPR deletion endpoints, and localization support for multilingual notifications. Engineering teams can switch to EU hosting by changing a single base URL with no workspace migration or downtime required.

Customer Engagement Platforms Are Splintered. Message Orchestration Is the Fix

Customer engagement platforms are splintered. Some are built for campaigns, others for support automation, and others treat messaging as a transactional delivery problem. The result is collisions, blind spots, and message fatigue. The highest-leverage fix is solving the lifecycle-to-product and transactional vector with a message orchestration layer: one system that routes, suppresses, prioritizes, and observes messages across channels. Think air traffic control for user communications.

Top 8 Customer Engagement Platforms for Product-Led SaaS in 2026

Comparing Courier, Iterable, OneSignal, Braze, Customer.io, Knock, Novu, and SuprSend across orchestration, developer experience, and infrastructure primitives for product-led SaaS.

What are transactional notifications? Transactional email examples, transactional push, and more.

Transactional notifications are automated messages triggered by user actions or system events, like password resets, order confirmations, and payment alerts. Unlike marketing messages, they require no opt-in and have legal protections under CAN-SPAM. This guide covers what transactional notifications are, how they work across email, SMS, and push channels, real-world examples for each, and how to stay compliant. Whether you're building your first notification system or auditing an existing one, this breakdown will help you understand what belongs in each category and how to route messages correctly.

Vibe Coding Notifications: How to Use Courier with Cursor or Claude Code

Courier's MCP server lets AI coding tools like Cursor and Claude Code interact directly with your notification infrastructure. Unlike Knock and Novu's MCP servers that focus on API operations, Courier's includes embedded installation guides for Node, Python, Flutter, React, and other platforms. When you prompt "add Courier to my app," your AI assistant pulls accurate setup instructions rather than relying on outdated training data. OneSignal's MCP is community-maintained, not official. Courier supports 50+ providers, native Slack/Teams integration, drop-in inbox and preference components, and a free tier of 10,000 notifications/month. Configure in Cursor with "url": "https://mcp.courier.com" and "headers": { "api_key": "YOUR_KEY" }.

The Complete Guide to B2B Customer Engagement

Courier provides the notification infrastructure layer for B2B customer engagement, routing messages across email, SMS, push, in-app, Slack, and Teams based on user preferences and product events. Unlike building notification systems in-house—which takes months of engineering time for features like multi-channel routing, preference management, and delivery tracking—Courier handles this infrastructure so product teams can focus on engagement strategy. B2B customer engagement requires multiple layers: notification infrastructure (Courier), customer data platforms (Segment), product analytics (Mixpanel/Amplitude), and channel-specific tools. Companies with strong engagement programs see 15-25% churn reduction. The key is connecting product events to customer communication at the right moment through the right channel, handling complexity like multiple users per account with different notification needs across work channels.