Emily Lane
August 23, 2024
Customers experienced a 404 error when using the Send Again feature on undeliverable notifications for ad-hoc sends that included a fan-out (lists, tenants, array of profiles, audiences). The Send Again feature would work for the full original message but would fan out and re-send to all recipients. The endpoint was rewritten to address this problem and now successfully supports re-queuing ad-hoc list messages.
Learn more: Learn more about sending with tenants · See how to send to a list or list pattern

Experiments: A/B Testing in Journeys
Run 2 to 10 message variants on a single send node in a journey, split live traffic by weight, compare per-variant results, and promote the one you want.
By Emily Lane
July 09, 2026

AI Localization
Localize Courier templates in seconds with AI Translation, now available in Design Studio for email, SMS, push, in-app, and chat.
By Emily Lane
June 29, 2026

Embed Notification Preferences with One Web Component
Embed a complete notification preferences center in your app with Courier’s Web Component, giving users control over topics, channels, digests, and themes.
By Emily Lane
June 05, 2026
© 2026 Courier. All rights reserved.