Amit spent 2 hours on a solar quote. His client saw a 4MB email attachment,
moved on, and bought from the competitor who sent a WhatsApp link.
The quote included savings calculations, system layout, subsidy breakdown, and two payment plan options. Amit was proud of it. His client opened the email, saw a large PDF attachment on a mobile screen, and went back to WhatsApp. The quote that took 2 hours to make was never read.
The solar company that won the order sent a clean WhatsApp message with a mobile-friendly quote and a payment link. In India, everything happens on WhatsApp. 3Sigma brings your quotes, invoices, and proposals there too.
Why Documents Sent by Email Don't Close Deals
This isn't about email being bad. It's about where Indian buyers actually pay attention. The numbers are not close.
What happens when you send documents by email
Open rate
18% for B2B emails in India. That means 82 out of 100 people you send a quote to never even open the email.
Mobile experience
A 4MB PDF attachment on a mobile browser requires downloading, opening a separate app, and zooming in on small text. Most people don't bother.
Where the email lands
In a folder with 400 other unread emails. Your quote competes with newsletters, bank statements, and vendor emails for attention it will never get.
What the client does next
Forgets about it. Asks you to resend it later. Or — worst case — says 'let me review it' and never does. The conversation goes cold.
Your ability to follow up intelligently
You have no idea if they opened it. You follow up blindly. You either call too soon (annoying) or too late (they've moved on).
What happens when you share via WhatsApp with 3Sigma
Open rate
95%+ for WhatsApp messages in India. The message shows up in the same place the client talks to their family and friends. It gets seen.
Mobile experience
3Sigma generates a clean web link. Client taps it and sees a professional, mobile-formatted quote — no downloads, no pinching to zoom, no switching apps.
Where it lands
In their WhatsApp inbox, which most Indians check dozens of times a day. Your quote is one tap away from being read, not buried in an email folder.
What the client does next
Reads it immediately. Replies in the same thread. Asks follow-up questions. Or taps the payment link. The conversation stays alive because it's in a live channel.
Your ability to follow up intelligently
You get a notification when they open the document. You know exactly when to call — right after they've read it, when it's fresh in their mind.
Three Types of Documents. What Each One Includes.
Every document type is built into 3Sigma. Create from a template, auto-fill the client's details, add your items, and share. The whole process takes under 5 minutes.
Quotation
For when a prospect is interested and needs a price — presented professionally, not in a WhatsApp voice note
What's included in every 3Sigma quotation:
How a client experiences it:
They receive a WhatsApp message: "Hi Sunita, please find your quotation for the solar system we discussed. Tap the link to view it." They tap. A clean, professionally formatted page opens on their phone — company logo at the top, all items listed clearly, total in bold, and a button that says "Pay ₹45,000 Now."
No PDF. No email. No download. They read it on the same screen they read everything else on.
Invoice
For after the deal — replacing the manual invoice-and-follow-up cycle that can take 30–60 days to resolve
What's included in every 3Sigma invoice:
The collection problem it solves:
A B2B product company typically takes 45 days to collect payment after delivery. The invoice goes to an email, the accounts team is slow, someone needs to approve it, the payment gets scheduled for next week, then next month.
When the invoice arrives on WhatsApp with a one-tap payment link, payment collection drops to 7–15 days for most businesses. The friction is gone. People pay when it's easy to pay.
Proposal
For complex sales where the client needs context, not just a number — interior design, solar, services, B2B
What's included in every 3Sigma proposal:
The interior design problem it solves:
An interior designer used to send proposals by email — 15 separate image attachments, a Word document, and a PDF with pricing. Clients would say "send again" or "let me check." Follow-up was endless.
Now the proposal is one link sent on WhatsApp. Client opens a single page with everything organised: introduction, images, plan, pricing, and a "Let's Proceed" button that starts the payment. Close rate improved 40%. More importantly, the first conversation — "I'll review and come back to you" — happens less often.
View Tracking: Know When to Call
The single biggest problem with sending quotes and proposals is not knowing if the client actually read them. 3Sigma solves this with real-time view tracking.
What you know after sending a document:
Client opened the document
They got it, they're reading it. Best time to call: 5–10 minutes after they opened it. The document is fresh in their mind.
3Sigma sends you: 'Sunita Rao just opened your quotation at 3:14pm.'
Client spent 8+ minutes on the document
Serious interest. They read it carefully. They likely have questions or are comparing with other options. Call now.
8 minutes on a quote = they read every line item, including payment terms. This is a buying signal.
Client opened it twice
They went back to re-read it — usually to show it to a spouse, business partner, or finance team. Decision is close.
Second open often happens 1–2 days after the first. If you haven't followed up, now is the moment.
Client opened it but didn't spend time
They saw it but didn't read it. Maybe they're busy. A follow-up in a few hours is appropriate — 'wanted to check if you had a chance to look at the quote.'
30 seconds on a 5-section proposal = skimmed, probably on the go. Don't assume they rejected it.
Client hasn't opened it in 48 hours
Didn't see it, or is avoiding it. Try a different approach — call first, then send the link again, or ask if they'd prefer you to walk through it on a call.
Sending a follow-up 48 hours after no open: 'Hi Sunita, wanted to make sure the link came through. Happy to do a quick 10-minute call to walk you through it.'
What tracking looks like in 3Sigma:
Quotation #Q-2847 — Sharma Residence Solar System
Sent to Rahul Sharma · Shared via WhatsApp · Nov 8, 2:30pm
Recent document activity
Payment Collection Built Into the Invoice
The average collection period for Indian SMBs is 35–45 days. Most of that time is not the client deciding to pay — it's friction. They have to log into their bank, find your account details, make the transfer, and tell you it's done. Each of those steps is a reason to delay.
3Sigma embeds a Razorpay payment link directly into the invoice. Client opens the invoice, taps "Pay Now," and pays in 60 seconds via UPI, credit card, or net banking. No bank details to type. No transfer to initiate. No WhatsApp message to send you the screenshot.
Invoice status updates automatically
When the client pays, 3Sigma marks the invoice as Paid and moves the lead in the CRM. No manual update needed.
Receipt sent to client immediately
A payment confirmation is sent to the client via WhatsApp automatically. They have proof of payment without asking for it.
Milestone-based payment tracking
For projects with multiple payment stages — advance, mid-project, completion — you create separate payment links for each milestone. Each one is tracked separately.
Automated overdue reminders
If the invoice isn't paid by the due date, 3Sigma sends automated reminder messages: 3 days before, on the due date, and 3 days after. Politely persistent, without the rep having to manually follow up.
Time saved: before vs after 3Sigma documents
Before: Creating and sharing a quote
After: Creating and sharing a quote in 3Sigma
What's Included in 3Sigma Sales Documents
Every document type is built into 3Sigma. Create, share, track, and collect payment without leaving the app.
Quote Builder
Create itemised quotations with GST, discounts, validity dates, and payment terms. Client details auto-fill from the CRM. Share as a WhatsApp link in one tap.
Invoice Generator
Professional invoices with auto-numbering, GST breakdown, and embedded Razorpay payment link. Payment status tracked automatically. Overdue reminders sent without manual follow-up.
Proposal Templates
Full-length proposals with company intro, requirements summary, proposed solution, timeline, pricing, and portfolio. Structured sections, mobile-formatted, shareable on WhatsApp.
WhatsApp Sharing
Every document generates a mobile-friendly web link. Send via WhatsApp in one tap. Client opens it instantly without downloading anything.
View Tracking
Know exactly when the client opened your document, how long they spent on it, and how many times they came back. Rep gets a notification the moment the document is opened.
Payment Link Integration
Razorpay payment embedded in every invoice. UPI, credit card, and net banking accepted. Receipt auto-sent to client on payment. Invoice status updates automatically.
To create and send a professional quote
vs 40+ minutes in Excel + email
Document open rate via WhatsApp
vs 18% open rate for email
Average payment collection with embedded links
vs 35–45 days via email invoices
Higher close rate when clients actually read the proposal
Documents sent on WhatsApp get read. Email ones don't.
What Businesses Say About Sending Documents on WhatsApp
"We do site surveys and then send detailed solar quotes. Before 3Sigma, we'd make the quote in Excel and email it. Half our quotes were never read — clients either ignored the email or forgot about it by the time they opened it. Now I send the quote on WhatsApp within 10 minutes of the site survey. I get a notification when they open it. My conversion rate from quote to order went from 18% to 34% in two months."
Sanjay Pillai
Owner, Solar Installation Company, Kerala
"As an interior designer, my proposals used to be 15 attachments — mood boards, 3D visuals, material lists, pricing. Clients would receive the email and immediately feel overwhelmed. Half of them never replied. Now I send one link on WhatsApp. They open one clean page with everything organised. I know who's actually reviewing it because I can see when they open it and which section they spend the most time on. My close rate improved significantly."
Priya Chandran
Interior Designer, Mumbai
"The invoice + payment link combination changed how quickly we collect. Before, we'd send an invoice by email, the client would say they'll transfer today, then it would take 3 weeks of follow-up. Now the invoice has a UPI link and clients pay the same day in most cases. Our average collection time dropped from 40 days to 9 days. That one change fixed our cash flow problem."
Ravi Krishnan
B2B Products Company, Chennai
Send Documents Where Your Clients Actually Read Them.
Book a 20-minute demo and we'll show you how quotes, invoices, and proposals work in 3Sigma — including the WhatsApp sharing, view tracking, and payment link integration.
Free 7-day trial. No credit card needed. Setup in under 10 minutes.
See How 3Sigma Works for Your Industry
Sales documents are one part of 3Sigma. Explore the complete CRM for your business: