WhatsApp Chatbot: How to Build One in Bitrix24 (2026)

Customers message you on WhatsApp — and answering every one by hand doesn't scale. That's where a WhatsApp chatbot comes in: an automated flow that talks to whoever messages you, asks the right questions, understands the reply and runs an action, like saving the data to your CRM or bringing in a human. This guide explains what a WhatsApp chatbot is, why businesses rely on them, and how to build one no-code in Bitrix24 with WASync Chat Flows — the visual flow builder.

What is a WhatsApp chatbot?

A WhatsApp chatbot is a conversation script that runs on its own inside your number. Instead of a rep typing the same opening questions every time, the chatbot sends the first message, asks a question, waits for the reply and decides the next step based on what the person wrote. It can send messages, branch by keyword, save answers, move the customer along the pipeline, and — when the conversation gets complex — hand off to a human.

The difference from an old "press 1 for sales" menu is what happens to the data. A good WhatsApp chatbot isn't just about replying fast: it qualifies the contact and feeds the CRM while it talks. Each answer becomes structured information — name, interest, budget, stage — instead of loose text someone would have to re-read later.

On Bitrix24, that chatbot is WASync's Chat Flows: a visual, no-code builder that runs on top of your WhatsApp connection and writes straight into the CRM.

Why do businesses use a chatbot on WhatsApp?

In WhatsApp-first markets, it's on WhatsApp that customers ask about price, raise a question and decide to buy. The problem is volume. When dozens of messages arrive a day, the team can't answer them all in time — and a message left unanswered for minutes becomes a sale lost to whoever replied first.

A WhatsApp chatbot solves both sides of that. It replies instantly, at any hour, without depending on someone being online; and at the same time it filters the people ready to talk to a rep from those just browsing. The human team stops repeating "what's your name?" and "what are you looking for?" and starts receiving only qualified conversations, with the data already filled in the CRM.

The result is faster service that doesn't turn into chaos: every conversation that arrives enters the pipeline with an owner, a history and a stage — the difference between "replying on WhatsApp" and running an operation that grows.

How do you build a WhatsApp chatbot in Bitrix24?

Building a WhatsApp chatbot with WASync needs no server and no code — the app runs hosted and the builder is visual. The path is:

1. Install WASync from the Bitrix24 Market and create a WhatsApp connection (by QR or the official API). If you haven't done that yet, see the WhatsApp CRM on Bitrix24 guide.
2. Open Chat Flows in WASync and create a new flow. This is where you design the conversation.
3. Drag the blocks and wire them together to build the script (questions, branches, actions).
4. Test in the simulator, set the trigger and activate. From then on the chatbot talks to inbound contacts on its own.

The heart of it is the visual builder, so it's worth understanding the blocks.

Do you need to code? (the no-code visual builder)

No. Chat Flows is built for people who know the business, not the code. You assemble the chatbot by dragging blocks onto a canvas and connecting one block's output to the next block's input. The main ones are:

• Question — sends a question and waits for the customer's reply.
• Message — sends text, without waiting for a reply.
• Router — branches the conversation by keyword (e.g. "buy" goes one way, "support" another).
• Set field — writes the answer straight to a Bitrix24 field on the Lead, Deal, Contact or Company.
• Move stage — moves the deal to another phase of the pipeline.
• Escalate — hands the conversation to a human agent.
• End — finishes the flow.

Two details keep the conversation natural. When the customer replies with something the flow doesn't understand, the chatbot re-asks in a varied way instead of repeating the same line — it requests the information again in different words. And messages go out with humanized typing, including the "typing…" indicator and a short pause, so it doesn't feel like a robot firing off text.

Before the flow talks to any real customer, you open the preview simulator and chat with it as if you were the customer. You can test each path, fix a question, and only then go live.

Does the chatbot just reply, or does it qualify and save to the CRM?

Here's what separates Chat Flows from a plain autoresponder: it qualifies and writes to the CRM while it talks. Each answer captured by a Question block can go straight to a Bitrix24 field with the Set field block — so by the time the conversation ends, the Deal is already filled in, with nobody typing anything.

A real qualification example: a recruitment agency uses a WhatsApp chatbot to screen job applicants. The flow asks for the name, the role they want and their experience, and writes each answer straight into the CRM deal. When the recruiter opens Bitrix24, the applicant is already there, fields filled and in the right pipeline stage — ready to review, with no manual data entry.

The flow trigger can be one of two kinds. Either a Bitrix24 robot, which fires the chatbot when a deal enters a pipeline stage; or "the customer writes first", which fires when a message arrives — and in that case WASync automatically creates or links a Contact and a Deal at enrollment, so the conversation is born tied to a record.

What if I want AI-generated replies?

Beyond fixed-script flows, WASync has optional AI automations. You tie an AI robot to a lead or deal flow, and it drafts a personalized WhatsApp reply from live CRM data — using your own provider key (OpenAI, Anthropic, Google or DeepSeek), with a backup model if the primary fails.

In practice you combine the two: Chat Flows gives structure and predictability (the right questions, the data in the right place), and AI steps in where an open-ended reply makes sense. To use it responsibly, read the automation best practices.

Does the chatbot work on QR and the official API?

Yes, and you can mix both in the same portal. Chat Flows runs the same on either connection — what changes is how the number is tied to WhatsApp:

• WhatsApp by QR (WAPP) — from €15/month per connection. You link an existing number by scanning a QR code, just like WhatsApp Web. Live in seconds, no migration or approval. Ideal for getting started fast and answering inbound.
• Official WhatsApp Business API (WABA) — from €25/month per connection. You connect the number to Meta's Cloud API by logging in with Facebook, which unlocks approved templates and sending that doesn't depend on a phone staying on.

The chatbot and AI features are the same on both — the difference is the connection type, not the feature set. If you're weighing them, read WhatsApp QR vs the official API. The full feature list is on the WASync features page.

How much does it cost and how do you start?

WASync bills per connection: from €15/month on the QR plan (WAPP) and €25/month on the official API (WABA). The Chat Flows chatbot builder is included — it's not an add-on. Each connection starts with a 7-day free trial, no card required, and Bitrix24 itself can run on the free plan. Current numbers are on the pricing page.

To get a WhatsApp chatbot live: install WASync from the Marketplace, connect a number by QR (the fastest route), open Chat Flows, build a simple flow — name, interest, save to CRM, escalate to a human — test it in the simulator and activate. If you're still comparing tools, it's worth looking at WASync vs Wazzup before you choose.

Frequently asked questions

What is a WhatsApp chatbot? It's an automated flow that talks to whoever messages you: it asks questions, understands the reply, branches on what the person says and runs actions, like saving the answer to your CRM or handing off to a human. In WASync it's Chat Flows.

Do I need to code? No. Chat Flows is no-code: you drag blocks (Question, Message, Router, Set field, Escalate, End) and test in the simulator before you go live.

Does the chatbot just reply, or also qualify? It qualifies. It writes each answer to a Bitrix24 field, moves the deal along the pipeline, and hands off to a human when needed.

Does it work on both plans? Yes, on both QR (WAPP) and the official API (WABA); the flow and AI features are the same.

How much does it cost? From €15/month per connection (WAPP) or €25/month (WABA), with a 7-day free trial per connection. Chat Flows is included.

Questions? Email [email protected] or reach us at +40 740 267 964. The fastest way to understand a WhatsApp chatbot is to install WASync from the Marketplace and build your first flow in Chat Flows.