Shoppy - Automatically get order notifications & summaries in Slack
The Big Book of Churn - The definitive guide to customer churn reduction
Customer.io Slack Action - Send notifications into Slack, based on user activity
Customer.io - We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users
Postmark - Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
OneSignal Push Notifications for Shopify - Abandoned cart, automated campaigns, robust analytics.