The short version: a correct WhatsApp Business profile has a square photo of at least 640×640 pixels, a business name under 25 characters that matches your actual trading name, a 139 character description, a real category, and honest hours, and it takes about ten minutes if you do it in the right order. Most people set the icon first and the boring compliance fields last, which is backwards and it is why so many WhatsApp Business profiles still look half finished six months after launch.
Why this is worth doing
I set up a WhatsApp Business profile for my own consultancy in about seven minutes flat, and I still got two of the fields wrong on the first go. My business name defaulted to the phone number’s saved contact name, my icon got cropped into an odd rectangle on some Android phones, and my description sat empty for a full week because I assumed it had auto pulled from my website. It hadn’t. Clients were messaging me and seeing a blank profile with a blurry photo. Not a great first impression from someone who tells other people how to look credible online.
That’s the thing nobody says out loud: a WhatsApp Business profile is often the first proper look a customer gets at your business, before your website, before your emails, sometimes before they’ve even seen your logo anywhere else. If it looks half done, they assume you are half done.
Step one: install the app and pick the right number before you touch the icon
You cannot fix a profile if you have installed WhatsApp Business on the wrong number or on a phone you are about to swap out. I have seen three separate small business owners rebuild their entire profile from scratch because they set it up on a temporary SIM. If you have not installed it yet, do that first and get the number sorted, there is a full walkthrough on how to install WhatsApp Business on your phone that covers the number and backup traps people fall into.
Once the app is installed and your number is confirmed, go to Settings, then Business Tools, then Business Profile. Everything below happens in that one screen.
Getting the icon right (the part everyone rushes)
The profile photo, which is what shows up as your icon in chats and in search, has specific technical requirements that most guides gloss over:
- Minimum recommended size is 640×640 pixels, square. Anything smaller gets stretched and looks pixelated on newer phones with high resolution screens.
- File size limit is 5MB. Most exported logo files are well under this, so this rarely trips people up, but PNG files with transparent backgrounds sometimes balloon past it if exported at high DPI.
- Use PNG for logos with sharp edges or text, JPG for photos. A logo saved as a low quality JPG will show visible compression artefacts once it’s shrunk into the tiny circular icon size.
- Avoid text heavy logos. At icon size, most of the wording becomes unreadable. A clean mark, initials, or a simple symbol reads far better at 96×96, which is roughly what it shrinks to on most phone screens.
Here’s the uncomfortable bit nobody wants to hear: a slick, corporate looking logo icon is not automatically the right choice. I tested this with a client who runs a small bakery in Kent. She swapped her hand drawn logo icon for a “professional” flat vector logo made by a freelance designer, and her reply rate on WhatsApp dropped. Customers told her afterwards, when asked, that the new icon “looked like a big chain” and felt less personal for a shop they liked because it felt like theirs. She switched back to a photo of the actual shopfront with her name above the door. Reply rate went back up within a fortnight. Professional does not always mean corporate, and for local, trust based businesses, a slightly rougher, more human icon can outperform a polished one. If you want the technical side of building a proper logo file that scales down cleanly, there is a detailed guide on getting a WhatsApp Business logo that looks professional without losing that human edge.
Business name: the field you cannot easily change later
Your WhatsApp Business display name is limited to 25 characters and it should match your registered or clearly recognisable trading name. Once your business account is verified, or once you’ve had a decent volume of message traffic, changing this name is not instant. WhatsApp reviews name changes manually for business accounts and it commonly takes between three and seven business days, sometimes longer if the new name doesn’t obviously match your business description, website, or category.
So decide on the name once, before you go live. If you trade as “Lilach Bullock Consulting” but your customers know you as “LB Consulting,” pick whichever version is on your invoices and website, and use that exact string. Mismatched names between your website, your Google Business Profile and your WhatsApp profile is one of the quieter reasons customers hesitate to message, because it doesn’t quite look like the same business.
The description: 139 characters, no more
The “About” or description field is capped at 139 characters. That is tight, roughly the length of one short sentence plus a comma. Skip the temptation to cram in every service you offer. Instead, write one line that answers the one question every stranger has when they open a chat with a business they don’t know yet: what do you do, and for whom.
A few examples that fit the limit and do real work:
- “Marketing consultancy for small B2B businesses. Message me for a free 15 minute audit.”
- “Family run bakery in Tunbridge Wells. Order collection cakes 48 hours ahead.”
- “AI implementation support for UK small businesses, 10 to 200 staff.”
Notice none of those are slogans. Slogans waste the character count. Specifics build trust faster than clever phrasing ever will.
Category, hours, address and links
These fields feel optional. They are not, if you want WhatsApp to work as a discovery channel rather than just a messaging box:
- Business category pulls from a fixed dropdown with over 20 options, from “Retail” to “Professional Services” to “Health and Beauty.” Pick the closest match, this affects how your profile displays and how some directory style listings categorise you.
- Working hours should be honest, not aspirational. If you reply between 9 and 5 on weekdays, say that. Listing 24/7 hours and then not replying until the next morning trains customers to distrust the field entirely, and once they distrust one field they tend to distrust the whole profile.
- Address matters far more for local businesses than most owners assume. It’s what allows your business to surface when someone is searching for services nearby, and it reassures customers that you’re a real, locatable operation rather than a message dropped from nowhere.
- Website field takes a full URL, and this is worth double checking, because a broken or mistyped link here quietly kills conversions. If you’re also directing traffic in from social, make sure the link you’re sharing works everywhere it appears, including in places like Instagram Stories, where the process of grabbing and pasting a link correctly trips people up more than you’d expect, covered in detail in this guide on copying and sharing a link from an Instagram Story.
Greeting message and away message
Under Business Tools you can set an automated greeting message, sent the first time someone messages you or after 14 days of inactivity, and an away message for when you’re not available. Keep the greeting under two short sentences. Something like: “Thanks for messaging! I usually reply within a few hours on weekdays. If it’s urgent, call [number].” That single line does more for perceived responsiveness than any icon or logo, because it sets an expectation before you’ve even said a word yourself.
The green tick myth
People ask me constantly how to get the official green verification badge on their WhatsApp Business profile. Here is the part most guides quietly avoid saying clearly: the free WhatsApp Business app does not give you that badge through profile setup, no matter how perfectly you fill in the fields. The green checkmark is tied to Meta’s official business verification process, which runs through Meta Business Manager and typically applies to businesses using the paid WhatsApp Business Platform (the API), not the standalone app most small businesses use. It requires document verification, a registered business name matching official records, and Meta’s approval, which can take weeks and isn’t guaranteed even then. If a “guide” tells you filling in your profile fields correctly earns you the tick, that’s not accurate. A correctly filled in profile earns you customer trust. It does not earn you the badge.
If you’re using WhatsApp for outbound, not just inbound
If your profile is going to be used for outbound prospecting rather than purely inbound customer chat, the profile setup matters even more, because a prospect who has never heard of you is judging your legitimacy on that profile alone before they’ll reply to a cold message. Pair a well set up profile with proper outreach tooling rather than relying on manual chat lists, there’s a large roundup of sales prospecting tools for outbound sales that’s worth a look if WhatsApp is one channel among several in your outreach mix.
A quick checklist before you call it done
- Icon is square, at least 640x640px, under 5MB, and readable when shrunk small.
- Business name is under 25 characters and matches your website and Google listing exactly.
- Description uses all or most of the 139 characters on something specific, not a slogan.
- Category, hours, address and website are filled in and honest.
- Greeting message sets a real reply time expectation.
- You have not confused a complete profile with the green verification badge, they are not the same thing.
This is one of 43 WhatsApp guides; the full index is WhatsApp: every guide in one place.
Frequently asked questions
What size should my WhatsApp Business icon be?
At least 640×640 pixels, square, saved as PNG or JPG and under 5MB, so it stays sharp when shrunk down to the small circular icon size shown in chats.
Can I change my WhatsApp Business name later?
Yes, but once your account has verified status or decent message volume, name changes go through manual review and commonly take three to seven business days, so choose the name you’ll keep before you launch.
Does filling in my profile correctly get me the green verification badge?
No. The green checkmark comes from Meta’s separate business verification process, mostly tied to the paid WhatsApp Business Platform, not from completing profile fields in the free app.
How long is the WhatsApp Business description limit?
139 characters, so it’s worth using that space for one specific sentence about what you do and for whom, rather than a slogan or a long list of services.
