A cancellation you read about on Monday morning happened on Friday night. By then the customer has moved on and the window for a conversation has closed.
Subscription events are the highest-value webhooks most SaaS businesses ignore, because reading them means logging into a dashboard nobody logs into daily. Routed to your phone, a failed renewal becomes something you can fix the same hour.
The one that matters. Knowing within minutes is what makes a win-back email feel like attentiveness rather than automation.
Usually an expired card, not a decision. Involuntary churn is the cheapest churn to fix and the easiest to miss.
The last moment a nudge still counts as helpful rather than pushy.
Worth knowing for the same reason a payment is: it tells you what is working.
Each of these sends the events above. Setup is the same for all of them.