Webhooks Signing: Tell Your App the Second a Document Is Signed

Here is the question that decides your whole workflow: when a contract gets signed, does your CRM find out on its own, or do you?

Picture the moment a client signs and the deal is finally done, yet your CRM still reads open, your project board sits empty, and your invoice has not gone out. So you forward an email by hand, as though it were still 2009. There is a faster path, and it has a name. Webhooks signing is how your own app learns about a signed contract the instant it happens, with no email to forward and nothing to copy and paste. A webhook is simply a message that CyberSygn sends to a web address you own whenever something happens to a document, which means your app gets a tap on the shoulder the moment a signature lands. It is the lightest form of e-signature API integration, because there is nothing to poll and no schedule to maintain, and the events simply arrive as they occur. In this guide you will learn which events fire, how to configure your endpoint in roughly ten minutes, and the exact automations other operators wire up first. By the end, you will understand how to make a single signed contract trigger your entire stack without your involvement, and why so many builders treat the webhook as the foundation of their whole signing flow.

Every document event that fires a webhook

A webhook fires at each stage of a document's life, including sent, viewed, partially signed, fully signed, declined, and canceled, and that complete list covers everything you would reasonably want to react to. Each message carries the details you need to act, so you receive the document ID, the signer's name and email, the current status, and exact timestamps without ever having to look anything up. The signed events give you even more, because they include secure links to the finished signed PDF and the audit certificate, which is the record that proves who signed and when. Those links stay valid for thirty minutes, which is long enough for your app to retrieve the file and store it safely. Why does this matter? Because the data arrives already shaped for action, so you are not parsing an email or scraping a dashboard. Instead, you receive a clean, structured message that states exactly what happened, to which document, and to whom. The signature webhook delivers the event, the people, and the proof in a single message, and that is the difference between merely knowing a contract signed and being able to act on it automatically.

Set up webhooks signing in about ten minutes

The setup is short, and you only do it once. From your Studio dashboard, open Settings and then Webhooks, paste in your endpoint URL, which is simply the web address where your app listens for messages, and then check the boxes for the events you care about. Maybe you only want fully signed and declined, or maybe you want all six events, which is entirely your call. Here is the part that keeps everything secure, because CyberSygn signs every payload with HMAC-SHA256, a code built from a secret that only you and CyberSygn share. Your endpoint verifies that code before it trusts the message, so a stranger cannot fake a signed contract and trick your system into onboarding a client who never paid. And if your server happens to be down for a minute, CyberSygn retries the document completion webhook with exponential backoff, waiting a little longer between each attempt, which means you never lose the event because it keeps knocking until your app answers. That retry behavior is what makes webhooks signing safe enough to build a real business process on, since a brief outage on your server no longer means a lost contract. The message simply waits for you.

The first automations operators wire up with a CyberSygn webhook

Once webhooks signing is live, the same patterns appear again and again. A signed sales contract flips the deal to closed in your CRM with no manual update, while a signed coaching agreement spins up the client's workspace on your project board the same minute they sign. A signed model release tells your photo library that the images are cleared to use, and a signed vendor MSA, the master contract you keep with a supplier, kicks off onboarding in your procurement tool. See the pattern? The CyberSygn webhook is the seam, the clean joint where signing connects to the rest of your stack. So what does that mean for you? It means the client signs once, and everything downstream moves on its own, with no forwarded email, no copied document ID, and no Monday-morning catch-up where you reconcile whatever got signed over the weekend. You wire the connection a single time, and it runs on every signature that follows. That is the whole point of this signature webhook setup: you turn one signature into the first domino, and the rest fall by themselves.