You sent the contract. They saw the message. Didn't open it. A day later you follow up. They reply: "yes, I'll sign it today." Three days pass. Nothing.
This isn't negligence. It's friction. Getting from "received an email" to "signed the document" takes four steps, and four chances to abandon. Most people don't decide not to sign. They just keep putting it off.
WhatsApp solves this differently from what you might expect. It's not just another delivery channel. The entire signing process happens inside the conversation — from reading the document to confirming the signature — without redirecting your signer anywhere else.
The Entire Process Happens Inside WhatsApp
This isn't a link sent via WhatsApp that takes them to another site. The PDF arrives in the chat. Identity verification happens in the conversation. The DottSign bot asks "do you confirm your signature?" — and the signer taps confirm, without ever leaving the app.
The difference in practice: the signer never has to make the decision to "stop what I'm doing and go sign that thing." They're already there.
How It Works, Step by Step
For you, nothing changes. Upload your PDF, place the signature fields, add your signers — exactly as before.
If the signer already has a DottSign account with a verified WhatsApp number, the option appears automatically at the sending step. If they don't have an account, no problem: enter their phone number and email manually. The flow works exactly the same.
For the signer, the experience is completely different:
1. One message, one button
They receive an interactive WhatsApp message with the contract name and a button to begin. No email to search for. No tab to open.
2. Verification in seconds, inside the chat
If they haven't verified their identity yet, that happens right there in the conversation with the DottSign bot — no leaving the app, no form on another page.
3. The PDF arrives in the conversation
The full document appears in the WhatsApp chat. They read it right there, without visiting any external URL.
4. One tap to confirm
The bot asks if they confirm the signature. They tap confirm. Done.
5. The signed document — also in WhatsApp
Once all signers confirm, each one receives the final PDF — with every signature — directly in the conversation.
Need to access it later? It's available in DottSign as usual, like any other contract.
Why WhatsApp Closes Contracts Faster
WhatsApp message open rates sit around 98%. Email open rates: between 20–30% on a good day.
But the number that matters most for contracts isn't open rate — it's completion rate. And completion drops every time the signer has to switch apps, find a link, log in, and locate the right document. Each step is a drop-off point.
When the entire process happens in one conversation, that friction disappears. For freelancers waiting on a client to sign an NDA before a project kicks off, for HR onboarding a new hire, for anyone waiting on a proposal approval — the full "send, read, and sign" cycle fits in a single message thread.
Why This Is Safer Than Email
A signing link sent by email can be forwarded to anyone. In the WhatsApp flow, the process is tied to the signer's phone number — only the person who received the message can sign.
Beyond that:
- Identity verification — the signer confirms who they are before accessing the document, directly in the WhatsApp flow.
- Full audit trail — every event (message sent, verification completed, signature applied) is time-stamped and exportable as a PDF.
- Legal validity — the signature carries the same legal weight as any DottSign e-signature. The delivery channel doesn't affect its validity.
Available on Pro and Enterprise Plans
| Feature | Free | Pro | Enterprise |
|---|---|---|---|
| Email signature requests | ✓ | ✓ | ✓ |
| WhatsApp signature requests | No | ✓ | ✓ |
| Your own WhatsApp Business number | No | No | Coming soon |
| Bulk WhatsApp sends | No | ✓ | ✓ |
On Pro, requests go out from the DottSign shared number. On Enterprise, you'll soon be able to connect your own number — messages arrive with your company's name.
Frequently Asked Questions
Do signers need a DottSign account? No. They only need WhatsApp. If they don't have a DottSign account, enter their phone number and email manually — the flow works exactly the same.
What if they don't have WhatsApp? Enter their email and they'll receive the invitation normally. The signing experience is identical.
Is the signature legally valid? Yes. The delivery channel — WhatsApp or email — doesn't affect the legal validity of the e-signature.
Can I use my company's WhatsApp number? Coming soon on the Enterprise plan. For now, sends go out from the DottSign shared number.
Use code WHATSAPP15 for 15% off any paid plan — valid through May 31.