Using WhatsApp for Business in the UK: A Marketing, Sales & Customer Support Guide

For many businesses, WhatsApp has become one of the fastest and most effective ways to communicate with customers. With over two billion users worldwide, it’s now one of the most powerful communication tools available.

If your customers are already spending time on WhatsApp, the opportunity is simple: meet them where they already are.

In this guide, we’ll break down how businesses use WhatsApp professionally, including:

• Marketing and promotions
• Sales conversations and lead generation
• Faster customer support
• Build stronger customer relationships

And most importantly, how to set up a dedicated WhatsApp Business Number properly.

Why WhatsApp is now essential for modern businesses

Traditional customer communication is breaking down.

Email inboxes are crowded, time to resolution is slow and phone calls feel disruptive.

WhatsApp changes this, enabling businesses to communicate in a way that feels:

• Instant
• Personal
• Frictionless
• Trusted

As a result, WhatsApp is one of the best-performing communication channels for modern businesses. It helps improve response times, build stronger customer relationships, and increase sales through faster, more direct conversations.

From marketing and lead generation to customer support and retention, WhatsApp can support the entire customer journey more efficiently and at scale.

Key benefits of WhatsApp for business

There are a number of benefits to using WhatsApp Business. Some of the main ones are:

✅ Direct communication
Messages go straight to the customer — no spam filters, no delays.

✅ Higher engagement
WhatsApp users show exceptional engagement, with message open rates around 98% and click-through rates of up to 35%, far higher than email newsletters.

✅ Faster customer support
Customers get answers in minutes, not days.

✅ Better conversions
Promotions, reminders, and follow-ups often outperform traditional marketing channels. Using WhatsApp can result in higher engagement and conversion rates compared to traditional email channels.

WhatsApp Business: the professional way to get started

There are two things you need to get started, first you need a unique number (it can’t be the same as the one you use for your personal WhatsApp),  and the second thing you need is the WhatsApp Business app. It’s free to download on both Android and iOS, and includes a range of features designed to help you work smarter, build trust, and grow your business.

The app is designed for small businesses, typically with one to five employees, and is best suited for basic use cases and low message volumes.

WhatsApp Business includes the following features free of charge:

• A professional business profile
• Automated greeting and away messages
• Quick replies for FAQs
• Labels to organise customer chats
• A product and service catalogue
• Broadcast messaging for updates and offers

Some additional features, such as integrations or advanced messaging capabilities, may be available as paid features. While the app is free to download and many features are free, the WhatsApp Business App lacks many enterprise-grade features and so is not suitable for larger businesses needing to scale their communication beyond basic functionalities.

Businesses that outgrow the WhatsApp Business App can migrate to the WhatsApp Business Platform for more advanced features with a more complex set up.

The most important step: setting up a WhatsApp Business number

As mentioned earlier, you will need a dedicated number for WhatsApp Business. If you already have your personal WhatsApp active on your phone, you can run both apps on the same device, but you need a separate number for each.

Don’t worry, this is simple to set up, and you can use a virtual number, which tends to be much cheaper than traditional mobile number contracts. This also helps keep communication organised and ensures customer conversations remain distinct from personal messages.

Using a separate WhatsApp Business number allows you to:

• Keep business and personal messages separate
• Build trust with customers
• Respond faster as your business grows
• Create a clear customer communication channel

When setting up the WhatsApp Business app, you can restore a backup from your personal WhatsApp account if needed. Note that you can only use one phone number for either the WhatsApp Business app or the WhatsApp Business Platform at a time.

For businesses looking to scale or manage customer conversations more effectively, setting up a dedicated business number is an important first step.

Get a WhatsApp Business number

How to set up WhatsApp Business in minutes

Getting started is simple:

• Get a dedicated WhatsApp Business number here
• Download the WhatsApp Business app (iOS or Android)
• Register using your new dedicated business number

Important: at this stage, it’s recommended to keep your WhatsApp Business contacts separate from your personal contacts. You will be asked whether you want to sync contacts during set up, we recommend that you don’t.

• Create your business profile (name, website, address, category)
• Set up greeting and away messages
• Save quick replies for common customer questions

Once set up, you can use WhatsApp Business across both mobile phones and web devices, making it easy to manage conversations throughout the day. However, keep in mind the limit on how many devices you can connect: each WhatsApp account is restricted to a maximum of five devices, and there is no central agent management system. This means that you can share the number with other team members as well. More on that later.

For a detailed step-by-step guide, you can read our article: How to Get a WhatsApp Business Number in the UK.

Best ways businesses use WhatsApp (real-world use cases)

WhatsApp isn’t just a support channel. With over 175 million people messaging businesses on WhatsApp every day, it has become one of the most effective ways to engage customers directly in a familiar, conversational format.

Here are some of the most common ways businesses use WhatsApp:

1. WhatsApp marketing campaigns

Businesses use WhatsApp to send:

• New product launches
• Limited-time discounts
• Event reminders
• Re-engagement messages
• Customer feedback requests

You can also use your product catalogue to showcase offerings and facilitate in-app orders, making it easy for customers to browse and purchase directly. Create a status to share an offer or news, and even take orders and payments in-app to create a great customer experience. 

"Click-to-WhatsApp" ads can drive customer initiation by placing buttons in Facebook and Instagram ads that open WhatsApp threads.

Because WhatsApp is conversational, marketing feels personal — not spammy.

Don’t forget to add WhatsApp Business information on your marketing materials.

• Your website
• Brochures
• Business cards
• Signage
• Etc

All of this can help trigger conversations and direct customer communication through your WhatsApp Business account.

2. Sales & lead generation

WhatsApp is perfect for turning enquiries into customers.

You can handle:

• Lead qualification
• Quoting and pricing conversations
• Appointment booking
• Personal follow-ups

With the WhatsApp Business App, you can organise your conversations to identify new customers and manage your workflow more efficiently. Personalising interactions by using the customer’s name and referencing past conversations helps to build stronger relationships and increase conversion rates.

Sales happen faster when customers can reply instantly.

3. Customer support & service

WhatsApp is now one of the most customer-friendly support channels available.

Use it for:

• Order updates
• Returns and refunds
• FAQs and troubleshooting
• Booking confirmations
• Escalating complex support issues
• Managing and prioritising important conversations to ensure timely responses

Customers increasingly expect support via messaging, not ticket queues, with 66.8% of consumers feeling frustrated when messaging isn’t offered as a contact option.

A note for larger and enterprise clients: with the WhatsApp Business API, you can receive messages directly into your support platform, enabling seamless communication and real-time notifications.

Built-in tools that make WhatsApp Business powerful

WhatsApp Business includes features designed to save time: you can quickly organise customer conversations, labels, and messages, and configure business tools in the app to improve customer interactions.

Automated messages

Set up automatic greetings and away messages to respond to customers and manage expectations when you’re unavailable.

Quick replies

Save and reuse responses for common questions, such as opening hours, pricing or service details, to reply faster and stay consistent.

Labels

Organise chats like:

• New enquiry
• Paid customer
• Support issue
• Follow-up needed

Labels in the WhatsApp Business App make it easier to organise chats and easily identify new customers, making it simpler to manage your workflow. You can create labels for your contacts and sort conversations, allowing you to streamline operations and improve customer support.

Business profile

A complete profile builds credibility instantly by showcasing your business information, contact details, and branding. It also provides a secure platform for customer interactions, ensuring privacy and professionalism. Business verification on WhatsApp adds a green checkmark to your profile, further enhancing trust and legitimacy with your customers.

Making & receiving calls

Making and receiving calls on the WhatsApp Business App operates similarly to personal WhatsApp, allowing free voice and video calls over an internet connection only. This makes it great for working from anywhere and keeping costs to a minimum.

Add your WhatsApp Business number to your website

All you then have to do is add your new WhatsApp Business number to your marketing materials and website. Your customers will then be able to reach out directly via WhatsApp. You can even add a QR generated from within your WhatsApp Business app — click here for instructions.

Using WhatsApp Business for international audiences

WhatsApp makes it easy for businesses to communicate with customers globally, without worrying about extra costs or complicated setups.

Because WhatsApp uses internet-based messaging, businesses can connect with customers across different countries without relying on international calls or SMS. This makes it particularly useful for startups, e-commerce brands and service providers working with distributed or international audiences.

The WhatsApp Business app is available in multiple languages, making it easier to engage with customers through a familiar platform.

For businesses managing higher volumes of international conversations, the WhatsApp Business Platform offers more advanced capabilities, including multi-user access and better conversation management across teams.

Whether you’re reaching new markets or supporting customers across time zones, WhatsApp Business is the ideal app to help you build valuable customer connections and deliver responsive customer support — anywhere in the world.

WhatsApp Business and customer loyalty

Building long-term customer relationships is essential for any business, and the WhatsApp Business app provides a simple way to stay connected with customers. 

By using features such as a professional business profile, automated messages and quick replies, businesses can respond quickly and consistently — helping to build trust and reliability. 

According to The State of Business Messaging 2026, 72.4% of consumers are more likely to purchase from a brand that offers messaging. WhatsApp Business enables you to send targeted offers and create ads directly within the app, helping you engage customers with relevant promotions and updates. By consistently delivering value and maintaining open, friendly communication, you can create memorable experiences that keep customers coming back. Use WhatsApp Business to build long-term loyalty, strengthen relationships, and turn every message into an opportunity to delight your customers.

Over time, consistent and responsive communication helps strengthen relationships and encourages repeat engagement.

Best practices for using WhatsApp Business

To get the most value from WhatsApp Business, it’s important to use it in a structured and customer-focused way.

Some key best practices include:

• Create a complete business profile with accurate contact details and a clear description
• Respond promptly to customer enquiries to build trust and reliability
• Use automated messages carefully to manage expectations without losing a personal tone
• Save quick replies for common questions to improve efficiency
• Organise conversations with labels to stay on top of customer interactions
• Keep communication relevant and respectful, especially when sending updates or promotions 

As your usage grows, regularly reviewing how you manage conversations and respond to customers can help you improve performance and maintain a high-quality customer experience. 

Common mistakes businesses make with WhatsApp

To get the most out of WhatsApp Business, it’s important to avoid common pitfalls:

❌ Using a personal number instead of a dedicated business number

❌ Unclear structure for responding to enquiries

❌ Sending generic broadcasts with no targeting or personalisation

❌ Losing track of conversations without labels or organisation

❌ Treating WhatsApp like email rather than a conversation channel

WhatsApp works best when communication is fast, relevant and human.

Final takeaway: WhatsApp as a business communication channel

WhatsApp has become one of the most effective tools for modern business communication.

Used correctly, it helps businesses deliver:

• Faster response times
• Higher engagement
• Stronger customer relationships
• More conversions
• A better overall customer experience

The key is to approach WhatsApp as a professional channel, with clear processes, structured communication and the right setup from the start.

Ready to use WhatsApp professionally?

If you’re looking to set up WhatsApp Business with a dedicated number and a more structured approach to customer communication, you can explore Hoxton Mix’s WhatsApp Business number services:

https://www.hoxtonmix.com/whatsapp-business-number/

FAQ

Is WhatsApp Business free?

Yes, the WhatsApp Business app is free to download and use. It includes features such as business profiles, automated messages and quick replies to help manage customer communication. Larger businesses using the WhatsApp Business Platform may pay for advanced messaging and integrations.

Do I need a separate phone number for WhatsApp Business?

Yes, a WhatsApp Business account requires a unique phone number that is different from your personal number. This helps keep personal and business communication separate and ensures a more professional experience for customers. You can use both WhatsApp and WhatsApp Business on the same device, though.

Can WhatsApp replace email support?

For many businesses, yes — WhatsApp can replace or complement email support. It allows for faster, more conversational communication, making it easier to respond to customer enquiries in real time. However, some businesses still use email alongside WhatsApp for more formal or complex communication.

What’s the best way to start using WhatsApp Business?

The best way to start is by setting up a business profile, creating quick replies for common questions, and using automated messages to manage customer expectations. Most businesses also choose to use a dedicated business number to keep communication organised and professional.