What Is a Sales Funnel and How to Build One: Stages, Conversion Math and CRM Setup

Short answer: A sales funnel is a model that splits the customer's path from first contact to payment into stages and shows how many customers remain at each one. A typical chain is "inquiry → qualification → proposal → negotiation → payment". When you build the funnel in a CRM and measure the conversion rate of every stage, you see exactly where customers drop off and can grow sales without raising the ad budget.

A familiar story: money went into Instagram ads, dozens of messages arrived in Telegram, reps spent the day on the phone, and sales still came in well below plan. Weak ads, slow replies, a high price or a late quote? Without a sales funnel, every answer is a guess. This guide explains what a sales funnel is, which stages B2B and B2C companies in Uzbekistan typically use, how to calculate conversion, and how to build the funnel in a CRM step by step.

What is a sales funnel?

A sales funnel (in Uzbek "savdo voronkasi", in Russian "воронка продаж") is a diagram that breaks the path of potential customers into stages and shows how many people reach each stage before buying. The name is literal: many people enter at the top, some drop out at every stage, and only a minority reach the bottom, which is payment.

Say 500 people message your Telegram in a month, a rep qualifies 300, 120 get a quote and 40 pay. Those four numbers are already a funnel, and they show where most customers leak out.

Key terms you need before building one:

• Lead: a potential buyer who left contact details (a Telegram message, a web form, a call).
• Deal (opportunity): a qualified lead with a confirmed need and budget.
• Conversion rate: the share of people who move from one stage to the next, as a percentage.
• Sales cycle: the average time from first contact to payment.
• Average deal size: the average value of one sale.

How does a sales funnel work and why do you need one?

A funnel turns sales from a single end result into several measurable steps, so you can find a problem at a specific stage and fix exactly that stage.

Without a funnel, a manager sees only "40 sales this month". With one, they see "40% of inquiries were never answered" or "most deals were lost on price after negotiation". The first calls for new rules for reps; the second for a pricing review.

What a funnel gives the business:

1. It pinpoints the weak stage, where conversion is low.
2. It enables forecasting of next month's revenue from deals in the pipeline.
3. It lets you compare reps on the same lead flow.
4. It evaluates marketing: which channel (Instagram, Telegram, OLX, referrals) brings payments, not just likes.
5. It grounds the sales plan: the leads needed for 60 sales a month become simple arithmetic.

What are the sales funnel stages for B2B and B2C?

There is no universal funnel: stages must mirror your actual sales process, but 5 to 7 stages are enough for most companies. Here are two typical scenarios in Uzbekistan.

B2C funnel: retail through Telegram and Instagram

In clothing, furniture, cosmetics or appliance retail, customers usually see an Instagram ad and write to Direct or Telegram. Typical stages:

1. New inquiry: a message arrives via Instagram Direct, Telegram, the website or a phone call.
2. Replied: the rep answered the first question.
3. Need clarified: size, color, model and delivery address are confirmed.
4. Order placed: the item is reserved and the amount agreed.
5. Paid: via Payme, Click, card, or cash to the courier.
6. Delivered: the item is handed over to the customer.

In B2C, speed decides the sale. Customers message three or four shops at once and buy from whoever gives the first useful answer.

B2B funnel: wholesale, services and manufacturing

For a building materials supplier, distributor or IT company, the cycle is longer and several people decide. Typical stages:

1. Lead: a form, a call, a trade show or a referral.
2. Qualification: target segment, budget, timeline, decision maker.
3. Meeting or needs analysis.
4. Commercial proposal: a quote with price, volume, timing and terms is sent.
5. Negotiation: discounts, payment terms and delivery conditions are agreed.
6. Contract and invoice: the contract is signed and an electronic invoice is issued through Didox or another e-document operator.
7. Payment and delivery: the money arrives and the goods ship or the work begins.

Each B2B stage needs a clear exit criterion: a deal moves to "Proposal sent" only once the PDF has actually gone out.

Repeat sales and existing customers

In wholesale, much of the revenue usually comes from repeat orders, so run a separate funnel for existing customers: "30 days since last purchase → call → new order". It earns without advertising.

How do you calculate sales funnel conversion?

Stage conversion = number who moved to the next stage ÷ number at the current stage × 100%. Overall conversion = number who paid ÷ the initial number of leads × 100%.

Take an illustrative example (the figures only demonstrate the calculation):

• Leads: 1,000 inquiries a month.
• Qualified: 400 (40% conversion).
• Received a proposal: 200 (50% conversion).
• Paid: 60 (30% conversion).
• Overall conversion: 60 ÷ 1,000 = 6%.

With an average deal size of 5 million sum, monthly revenue is 60 × 5 million = 300 million sum.

Now improve a single stage without extra ad spend: qualification-to-proposal rises from 50% to 60%. Proposals grow to 240, payments to 72, revenue to 360 million sum: 20% more from the same leads. That is the core idea of funnel management: keeping the leads you have is often cheaper than buying new ones.

A few more useful formulas:

• Revenue = leads × overall conversion × average deal size. Raise any lever, revenue grows.
• Customer acquisition cost (CAC) = marketing and sales spend ÷ number of new customers.
• Leads required = sales target ÷ overall conversion. If you need 90 sales at 6% conversion, you need about 1,500 leads.

For tracking conversion in regular reports and tying it to rep KPIs, see Sales department KPIs and sales reports.

How to build a sales funnel step by step

Building a funnel starts not with configuring software but with writing down your real sales process; then the stages go into the CRM, get measured and are improved on a regular cycle.

1. Describe the current process. With your 2 or 3 best reps, walk through the last 10 successful sales: source, steps, time taken.
2. Define the stages. Pick 5 to 7. Each should mark a concrete change on the customer's side: "need clarified", "received proposal", "paid".
3. Write an exit criterion for each stage. When does a deal move on? Which fields are mandatory (for example, no move to "Proposal" without an amount and a named decision maker)?
4. Fix the lead sources. Instagram, Telegram, website, phone, OLX, referral, trade show. Make source a required field, or you will never know which channel works.
5. List the loss reasons. "Too expensive", "chose a competitor", "not responding", "not a target customer". Picking one is mandatory when a deal is lost.
6. Move it into the CRM. Configure stages, fields, sources and loss reasons, and connect every channel so leads are created automatically.
7. Set up tasks and reminders. A deal without a dated next step is effectively dead.
8. Measure for a month. Collect baseline numbers: conversion by stage, time spent at each stage and loss reasons.
9. Fix the weakest stage first. Close the biggest leak, measure, then move to the next.

If your sales currently live in Excel, you will need to clean the data first. More on that: Moving from Excel to ERP: why and when.

Leaks in the funnel: where and why do customers drop off?

A funnel leak is a stage whose conversion is well below what you expect; you find it by comparing stage-by-stage numbers and analyzing loss reasons. The most common leaks we see in companies in Uzbekistan:

• Slow replies. Telegram and Instagram messages wait hours. Fix: auto-assign leads and track first response time.
• Chats on reps' personal phones. The manager never sees them, and customers leave with the rep. Fix: connect messengers and calls to the CRM.
• Forgotten follow-ups. Nobody calls back the "I'll think about it" customer. Fix: a mandatory next task with a due date.
• Price before questions. The customer gets a bare price and goes quiet. Fix: 2 or 3 clarifying questions before quoting.
• Uncontrolled calls. Reps call from ordinary mobile phones and nobody knows how many calls were made. You do not need office IP telephony to fix this: No call center in your sales team? An ordinary phone will do.
• Sales and warehouse live apart. The deal closes, the item is out of stock, the customer cancels. Fix: a CRM that sees stock levels.
• Poor-fit leads. Fix: measure conversion by source and switch off weak channels.

What mistakes do companies make with their funnel?

The most common mistake is drawing the funnel once and never looking at it again; a funnel only pays off when it is measured and reviewed regularly. Other typical mistakes:

1. Too many stages, so reps stop updating cards.
2. Stages as rep actions. "Called" is a task; a stage shows what the customer agreed to.
3. Deleting lost deals instead of closing them with a reason.
4. One funnel for everything. Retail, wholesale and repeat customers follow different paths.
5. Watching only overall conversion, without the stage breakdown.
6. Configuring the CRM without the reps, who then drift back to notebooks.

How do you build a sales funnel in Odoo?

In Odoo CRM the funnel is set up in the Pipeline view as a kanban board: stages are fully configurable, and a won deal becomes a quotation and sales order in Odoo Sales, then warehouse and accounting documents.

In any CRM the funnel is a kanban board where each column is a stage and each card a deal (new to CRM? start with What is a CRM system?). What sets Odoo apart is that the funnel does not stop at the sale. One database runs the whole chain:

1. A lead arrives from a website form, email or, through an integration, Telegram, and is assigned to a rep.
2. An opportunity moves through stages with scheduled activities (calls, meetings, emails).
3. A quotation is created from the deal in one click, priced from the pricelist.
4. The sales order, once confirmed, reserves warehouse stock and creates the delivery document.
5. The invoice is issued in the accounting module, and the receivable is closed when payment arrives.

The manager sees pipeline deals, stock and the customer's balance in one place. Loss reasons, deal probability and pipeline analysis come standard. More detail: Odoo CRM: automating your customer base and growing sales and Odoo Sales and Purchase.

Checklist: is your funnel ready?

If you can answer "yes" to every item below, your funnel is ready to work.

• Stages come from the real process and number no more than 5 to 7.
• Each stage has a written exit criterion.
• Lead source is a required field.
• All channels (Telegram, Instagram, website, calls) are connected to the CRM.
• Every active deal has a next task with a due date.
• There is a list of loss reasons, and choosing one is mandatory.
• Stage conversion is reviewed once a week.
• Reps helped design it and are trained.
• The CRM is connected to the warehouse and accounting, or there is a plan to connect it.

How can Deep Vision help?

Deep Vision is an official Odoo Gold Partner in Tashkent; we build sales funnels in Odoo CRM inside one system with sales, inventory and accounting. Our team has 7 certified Odoo specialists, and 26 client projects are listed in the Odoo partner catalogue (partner page).

In a funnel project we typically:

• Process analysis with your best reps to define the stages.
• Configure Odoo CRM: stages, required fields, sources, loss reasons, access rights and reports.
• Set up integrations: website forms, Telegram, email, and data migration from 1C if needed.
• Put calls under control: our product dooCall turns an ordinary phone into a sales call-center tool and tracks calls.
• Training and support after go-live.

Standard Sales and Inventory modules often go live in 6 to 8 weeks; larger projects usually take 2 to 6 months. See our portfolio for past work and the Odoo implementation page for service details. Want to review your funnel together? Fill in a short brief.

Frequently asked questions

What is a sales funnel in simple terms?

A sales funnel is a diagram of the steps a customer takes from first contact to payment, with the number of customers at each step. It shows where sales get stuck and at which stage customers are lost.

How many stages should a sales funnel have?

Five to seven suit most companies. Too few hide the problem; too many and reps stop updating cards. Each stage should mark a real change in the customer's status.

How do you calculate funnel conversion?

Stage conversion = moved to next stage ÷ at current stage × 100%. Overall conversion = paid ÷ all leads × 100%. If 60 of 1,000 leads buy, overall conversion is 6%.

What is a good conversion rate?

There is no universal benchmark; it depends on industry, deal size, channel and cycle length. Compare your own numbers month to month and between reps, and fix the weakest stage first.

How is a B2B funnel different from a B2C funnel?

B2C is short: customers decide in hours or days, so response speed matters most. B2B is longer, with qualification, meetings, proposals, negotiation and a contract, and several decision makers.

Do I need a funnel for sales through Telegram and Instagram?

Yes. Customers get lost there most often because chats are scattered across reps' phones. Connected to a CRM, every message becomes a lead with measurable response time and conversion.

Can I run a sales funnel in Excel?

For a couple of reps at the start, yes. But Excel does not capture leads, send reminders or report in real time, so a CRM wins as volume grows.

How long does it take to set up a funnel in Odoo CRM?

Setting up just the CRM funnel usually takes a few weeks when the process is clear. When CRM is rolled out together with sales, inventory and accounting, standard Sales and Inventory modules often go live in 6 to 8 weeks, and larger projects in 2 to 6 months.

Conclusion

A sales funnel moves sales from guesswork to numbers. To build one, write down your real process, choose 5 to 7 clear stages, connect every channel to the CRM, measure conversion and start with the weakest stage. In many cases the cheapest way to grow revenue is not more advertising but keeping the leads you already have.

Let's find the leaks in your funnel together: fill in the brief for a free consultation or call +998 77 093 00 07.