The short version: you convert a personal WhatsApp account to a business account by downloading the free WhatsApp Business app, migrating your existing number and chat history into it with the built in transfer tool, then filling out a business profile with your hours, address, catalogue and automated replies. It takes about fifteen minutes. What it does not do is magically make people trust you more, and nobody tells you that part.
What changes when you convert
WhatsApp Business is not a toggle inside your existing app. It is a separate app, sitting alongside the regular one, and when you convert you are moving your number and your history from one app to the other. Once you have done it, your contacts see a small “Business Account” label under your name, plus whatever profile details you have added. That is the whole visible difference from their side.
From your side, you get tools the personal app does not have: a catalogue for up to 500 products or services, quick replies you can trigger with a slash command, an automated greeting message, an away message for outside hours, and labels so you can tag chats as “New lead”, “Paid” or “Follow up” the way you’d tag emails. There is also a business profile section for your address, website, email and category, which is the bit most people skip and shouldn’t.
Step by step: converting your personal WhatsApp to WhatsApp Business
This is the actual process, not the marketing version of it:
- Download WhatsApp Business from the App Store or Google Play. It is free.
- Open it and choose “Agree and Continue”.
- Enter the same phone number you use on your personal WhatsApp. This is the important bit: you cannot run the same number on both apps at once on the same phone unless you use WhatsApp’s dual account feature on a device that supports two numbers.
- WhatsApp will detect that this number already has an account and offer to migrate your chats, contacts, groups, media and settings across. Tap yes. On a normal amount of chat history (a few thousand messages, a handful of groups) this takes two to five minutes over wifi.
- Once the migration finishes, your personal WhatsApp app on that number stops working, because the account has moved. This surprises people every single time.
- Set your business name. You cannot easily change this later without going through a review, so get it right the first time; use your actual trading name, not a nickname.
- Fill in the business profile: category, description, address, email, website, and business hours.
- Turn on the greeting message and away message under Business Tools, and write both rather than leaving the default text, because the default text is obviously default text.
If you would rather keep your personal number untouched and run the business account on a second SIM or a second eSIM, that works too, and for anyone doing client work from their own phone I think it is the better route. I run two numbers on one phone for exactly this reason, personal on one, business on the other, and I have never once regretted the small hassle of carrying two SIMs.
The decision to make before you tap convert
Before you touch the migrate button, decide whether you want your existing personal number to become the business number, or whether you want a fresh number for the business and to keep your personal WhatsApp exactly as it is. Once you migrate, reversing it is not a quick undo. If you get this wrong you will end up needing to move everything back the other way, which I have covered in detail in how to switch WhatsApp Business back to a normal account without losing everything, and it is a more fiddly job than the conversion itself.
My honest advice after doing this for myself and for several clients: if your personal number is already on your website, your email signature, your Google Business Profile or printed on anything, converting that same number is fine and saves confusion. If it is not out in the world yet, get a second number and keep the two lives separate. Clients message at 9pm on a Sunday about invoices. You want the option to mute that channel without muting your mum.
The bit that gets skipped: filling out the profile
I see business accounts constantly where someone has done the app migration and stopped there, so the “Business Account” label is the only thing that’s changed and the profile is empty. That is worse than staying personal, because it signals “I set this up and then didn’t finish”, which is not the impression you want.
Fill in every field. Add your real address even if you work from home and only put the town, add a working email, add your website, and pick a specific category rather than the vague catch-all one. Then build at least a basic catalogue, even five items with prices and a photo, because a catalogue that exists is a shop window and a catalogue that doesn’t is a missed sale every time someone asks “what do you charge?”
The uncomfortable part nobody wants to say out loud
Here is the bit that most guides on this topic quietly avoid: converting to a business account can make you feel less approachable, not more. A green tick and a catalogue read as “company”, and some of the warmth that makes WhatsApp work for small, personal, service based businesses comes precisely from the fact that it looks and feels like texting a person, not a system. I’ve watched a one-person coaching business lose the easy, chatty tone of her client messages the week she switched, because suddenly every reply felt like it needed to sound “on brand” rather than just sound like her. She fixed it inside a fortnight by writing her greeting message and quick replies in her own voice instead of the polished default text, but it is a real cost worth planning for, not an automatic upgrade.
The same thing happens with email, by the way. The moment small businesses start “sounding professional” they start sounding like everyone else, and I’ve written about why that happens and the cheap fix for it in why every small business email sounds the same now. WhatsApp Business has the same trap built into it. Use the tools, keep the voice.
A real example: the candle business that nearly lost its best customers
A client of mine, a candle maker trading under her first name from a converted garage in Cheshire, converted her personal number to WhatsApp Business the week she got her first big wholesale order, because she thought a business account would look more credible to the shop buying from her. It did, on paper. But her existing customers, the ones who had been messaging her for two years about restocks and custom scents, suddenly got an automated away message every time they wrote outside 9 to 5, including regulars who had her personal number saved as a friend, not a supplier.
Three of them messaged me directly, confused, asking if she’d sold the business. That is the actual risk with converting a number people already have saved: the automation reads as distance to anyone used to a person answering. We solved it by switching the away message off entirely for the first month and only turning it on gradually, plus we sent a single broadcast message to her existing list explaining the change in her own words before any of the automated tools kicked in. Orders that month were up, not down, but only because we managed the switch rather than just flipping it and hoping.
When the free app stops being enough
The WhatsApp Business app is fine for one person answering messages themselves. It starts creaking once you have more than one team member needing to reply from the same number, more than a handful of conversations happening at once, or you need it wired into a CRM. That is when businesses move to the WhatsApp Business Platform, formerly called the API, which runs through a provider rather than an app on your phone and charges per conversation, typically somewhere between a few pence and around 40p per conversation depending on the country and the type of message, with providers like Twilio, MessageBird or 360dialog sitting in between you and Meta.
If customer support is the main reason you’re converting in the first place, it’s worth reading through the setup rather than assuming the free app will scale, and I’ve laid out exactly how to get a support-ready account running in how do you start a business account on WhatsApp for customer support. Most solo businesses and small teams under five people never need to leave the free app. Most businesses that think they need the paid platform on day one are solving a staffing problem, not a software one.
Putting it on your website once it’s live
Once the account is converted and the profile is filled in, the next sensible move is getting a click-to-chat button or widget on your website and your Google Business Profile, rather than leaving people to type your number in manually, which almost nobody will do. I’ve written the exact setup for that, including where the button converts best on a page and what to avoid, in how do you add WhatsApp Business to your website and marketing. If you’re weighing WhatsApp against Messenger for the same job, the two behave differently enough on business pages that it’s worth comparing before you commit your ad budget to one, and there’s a full breakdown in Facebook Messenger tricks for business pages that move the needle.
Related reading: account in review whatsapp business.
Related reading: change whatsapp business number.
Frequently asked questions
Will I lose my chat history when I convert to WhatsApp Business?
No, as long as you use the migration tool inside the WhatsApp Business app when it detects your existing number, which carries across your chats, media, groups and contacts in two to five minutes. You only lose history if you set up the business account as a brand new number instead of migrating the old one.
Can I use WhatsApp Business and personal WhatsApp on the same number?
Not on the same phone with one number, no. The two apps cannot both be active on one number on a single device; you either migrate the number fully to Business, or you use a second number or a phone that supports dual SIM or eSIM to run both apps separately.
Is converting to a business account free?
Yes, the WhatsApp Business app itself is completely free to download and use, including the catalogue, labels, quick replies and automated messages. Costs only start if you outgrow the app and move to the paid WhatsApp Business Platform for multi-agent teams, which is billed per conversation, not per download.
What if I convert and want to go back to a personal account?
You can, but it is not instant and needs its own set of steps to preserve your chat history rather than losing it, which is common enough that it’s worth reading the full process for switching WhatsApp Business back to a normal account before you attempt it on your own.
