An email sequence is a series of automated emails sent to a person over time. These emails are usually designed to guide the reader toward a goal, like making a purchase or signing up for a service.

Subscription bundling on Shopify is when you sell multiple products or services together as part of a single subscription. Instead of customers subscribing to each item separately, they pay one recurring fee for a bundled set.

Customer Lifetime Value (CLV) represents the total revenue you can expect from a single customer throughout your entire relationship. It's far more than just another business metric—it's the dollar value that shows whether your customer relationships are actually profitable over time.

Subscription revenue is money that keeps coming in—predictably and consistently—from customers who've signed up to receive your products or services on a regular schedule.

Customer churn is simple but brutal: it's the percentage of subscribers who wave goodbye to your service during a specific timeframe. For subscription businesses, these are your customers canceling their subscriptions or simply not renewing when the time comes.