What Are WhatsApp Usernames And Why Should I Get One For My Business?
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WhatsApp has quietly made one of the biggest changes to how people find and message businesses since the platform launched. Users can now choose a username – a proper @handle, like on Instagram or X – instead of sharing their phone number to start a conversation. For most people that sounds like a nice privacy feature. For businesses, it changes quite a bit about how you receive messages, how you identify returning customers, and what happens to your CRM data.
Here is what is actually happening, what it means in practice, and why claiming your business username sooner rather than later is worth doing.
What WhatsApp Usernames Actually Are
A WhatsApp username is a unique handle that any user can set on their account. Think of it like a social media handle – @yourbusiness, for example. It sits alongside your phone number rather than replacing it, and it gives people a way to be found on WhatsApp without giving out a number first.
The format is straightforward: between 3 and 35 characters, lowercase letters, numbers, periods, and underscores only. No spaces, no capital letters, no domain endings like .com or .net. And once a name is taken, it is taken.
For individual users, the big appeal is privacy. You can message someone, join a group, or start a business conversation without ever handing over your phone number. For businesses, the appeal is different – a memorable, searchable identity that customers can find you by directly in the app.
The rollout is phased. WhatsApp began opening username registration to businesses via the API in the first half of 2026, with the user-facing tools for personal accounts expanding through the second half of the year.
How Conversations Are Starting to Change
Before usernames, every time someone messaged your business on WhatsApp, you got their phone number. Full stop. That number went into your CRM, matched to a contact record, and the conversation continued. Clean and simple.
That is still what happens for most conversations. But here is the shift: when a user has adopted a username and messages your business without sharing their phone number, you no longer receive their phone number in that webhook. You receive something called a Business Scoped User ID instead – a BSUID.
A BSUID is an alphanumeric identifier, up to 131 characters, that is unique to each customer-per-business relationship. The same customer gets a different BSUID for every business they talk to. Their BSUID with your business stays the same over time, so you can still recognise a returning customer across multiple conversations – you just cannot look them up by phone number the way you used to.
A few things worth knowing about BSUIDs:
- They stay constant even if a user changes or removes their username
- They only change if the user switches to a different WhatsApp phone number entirely
- Outbound messaging to phone numbers you already have works the same as before
- If someone has messaged you in the last 30 days, their phone number is still visible in the conversation window
- Existing customer relationships are preserved through a Contact Book feature
So for customers you already know, not much changes day to day. It is new inbound conversations from username-adopting customers where the difference shows up.
Why This Matters for Your Business
Most businesses are not thinking about this yet. They will start thinking about it when they notice their CRM has contacts with no phone number attached, or when an automated flow fails because it expected a phone number and got a BSUID instead.
The practical impact depends on how your WhatsApp setup is configured:
If you are using a shared team inbox
Agents handling inbound WhatsApp conversations will start seeing username-identified customers. The conversation still arrives and can still be handled normally – the difference is that you cannot immediately match the customer to an existing record using a phone number lookup if they are messaging for the first time.
If you have CRM integration
Any contact-matching logic that relies solely on phone number will miss username-adopting customers. The fix is to store BSUID as a separate field on your contact records alongside phone number, and update your matching logic to check both. This is not complicated, but it needs to be done before you start losing contact history.
If you run Click-to-WhatsApp ad campaigns
New customers coming through these campaigns may now arrive with a BSUID rather than a phone number, depending on whether they have opted into a username. Your lead capture and follow-up flows need to handle both cases.
The short version: Nothing breaks overnight. But if your business uses WhatsApp at any scale – for support, sales, or campaigns – you need to add BSUID support to how you store and match contacts. Do it now, before username adoption accelerates and you find gaps in your contact records.
Why You Should Claim Your Business Username Now
There are two reasons to move quickly here, and they are different from each other.
The first is brand protection. Usernames are first-come, first-served. Your business name, your brand handle, the name your customers know you by – if someone else registers it first, it is gone. That could be a competitor, a squatter, or just someone who happened to sign up earlier. WhatsApp has given API businesses first access to reserve usernames that match their WhatsApp Display Name, their Meta Verified Name, or their Facebook and Instagram Business handle. If you qualify, that priority window will not last forever.
The second reason is discoverability. Once usernames are fully rolled out, customers will be able to search for businesses directly by username within WhatsApp. Right now most businesses are only reachable via a saved number, a link, or a QR code. A clean username like @yourbusiness means a customer who half-remembers your name can find you without needing to Google first.
That is a meaningful shift for how new conversations start – especially for local businesses, service providers, and anyone whose customers are already active on WhatsApp. Being searchable in the app, with a professional handle, is the kind of low-effort visibility improvement that compounds over time.
How to Claim Your Username
For businesses using the WhatsApp Business API, the process runs through WhatsApp Manager:
- Go to WhatsApp Manager
- Select Phone Numbers
- Open the Username section
- Follow the steps to register your preferred handle
If your preferred name matches your existing WhatsApp Display Name, Meta Business account name, or Facebook or Instagram Business handle, you may be able to claim it with priority during the early access period.
Username format rules to keep in mind: 3 to 35 characters, lowercase only, letters, numbers, periods, and underscores. No spaces. Once registered, a username can be changed later – but you cannot guarantee your preferred name will still be available if you wait.
| What | Before Usernames | After Usernames |
|---|---|---|
| How customers find your business on WhatsApp | Saved number, link, or QR code | Username search, saved number, link, or QR code |
| Identifier received when someone messages you | Always a phone number | Phone number or BSUID (if customer has adopted a username) |
| Outbound messaging to existing contacts | Phone number required | Phone number required – unchanged |
| Customer identity in CRM | Phone number only | Phone number and/or BSUID – both need to be stored |
| Business searchability in WhatsApp app | Not searchable | Searchable by username once fully rolled out |
| Business profile | Name, description, category, website | Same, plus @username displayed on profile |
Managing WhatsApp at Scale With Nuacom
WhatsApp works well for one-to-one conversations. The moment you have a team handling it, multiple agents responding to the same inbox, or campaigns running alongside support conversations, you need a proper system behind it.
Nuacom brings WhatsApp into the same platform as your phone system, giving your team a shared inbox where conversations are assigned, tracked, and managed with SLAs. Whether a customer contacts you by phone or WhatsApp, it all flows through one place. Campaigns, support, and sales conversations sit alongside call recordings, voicemails, and analytics – all in a single portal your whole team can access.
As username adoption grows and more inbound messages arrive with BSUIDs rather than phone numbers, having WhatsApp managed inside a centralised platform makes it much easier to keep customer records clean, handle handoffs between agents, and make sure nothing falls through the gap.
Your WhatsApp Username Checklist
- Claim your username: Go to WhatsApp Manager, find the Username section under Phone Numbers, and register before your preferred handle is taken
- Update your CRM: Add a BSUID field to your contact records and update any matching logic to check both phone number and BSUID. Nuacom integrates with HubSpot, Salesforce, Zoho, and Pipedrive.
- Review your inbound flows: Any automated flow that expects a phone number from every incoming message needs to handle the case where only a BSUID is provided
- Check your Click-to-WhatsApp campaigns: New leads from these campaigns may arrive without a phone number if they are username adopters
- Update your agent training: Make sure your team knows why some conversations do not have a phone number attached, so they do not go hunting for one that does not exist
- Review your GDPR policies: BSUID is likely personal data, so your retention and deletion rules for phone numbers should apply to BSUIDs too
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Final Word
WhatsApp usernames are not a dramatic overnight change. For most businesses, the majority of inbound conversations will keep arriving the same way they always have. But the shift is happening, adoption will accelerate through 2026 and beyond, and the two things worth doing now are both simple: claim your username before someone else does, and make sure your CRM can handle a BSUID. Neither takes long. Waiting until the gap shows up in your contact records is the harder way to learn this lesson.
FAQ
A WhatsApp username is a unique @handle that businesses can register on their WhatsApp Business account. It gives customers a way to find and message your business directly within WhatsApp by searching for your handle, without needing a saved phone number or a link. Usernames are 3 to 35 characters, lowercase only, and use letters, numbers, periods, and underscores. Your business phone number remains visible on your profile even after you register a username.
A BSUID (Business Scoped User ID) is the identifier WhatsApp sends to your business when a customer messages you without sharing their phone number – which happens when a customer has adopted a username. It is unique to each customer-per-business relationship, so the same customer gets a different BSUID for every business they message. It stays stable over time, so you can still recognise returning customers. It replaces the phone number in those inbound webhooks, so any system expecting a phone number from every message needs to be updated to handle BSUIDs too.
Existing relationships are largely protected. If a customer has messaged you in the last 30 days, their phone number remains visible in the conversation window. WhatsApp also has a Contact Book feature that preserves existing customer relationships. The change is most relevant for brand new inbound conversations from customers who have adopted a username and have no prior contact history with your business.
Go to WhatsApp Manager, select Phone Numbers, and open the Username section. From there you can register your preferred handle. API businesses get priority access to register usernames that match their WhatsApp Display Name, Meta Verified Name, or Facebook or Instagram Business handle. If your preferred name is available and matches one of these, you can claim it now. Usernames can be changed later, but there is no guarantee your preferred name will still be available if you wait.
No. Registering a WhatsApp username for your business does not hide your phone number. Your business phone number stays visible to customers on your profile. The username sits alongside it as an additional identifier, not a replacement. Customers can still reach you using your number, a link, or a QR code – the username just adds a new way for them to find and message you directly in the app.
Yes, once usernames are fully rolled out, customers will be able to search for businesses by username directly within the WhatsApp app. This is a meaningful change from the current situation where businesses are only reachable via a saved number, a link, or a QR code. A registered username means a customer who knows your business name can find and message you without having to go outside the app to look up your number first.
Yes, if your CRM uses phone number as the identifier for WhatsApp contacts, you need to add a BSUID field alongside it. When a customer who has adopted a username messages your business for the first time, their phone number will not be included in the webhook – only their BSUID. Any contact-matching or lead capture logic that expects a phone number from every inbound message will need to be updated to recognise and store BSUIDs too, otherwise those customers will not be correctly matched to existing records or properly created as new ones.
The rollout is phased. WhatsApp set a June 2026 deadline for the backend system changes that introduce BSUIDs, meaning businesses using the API needed BSUID support in place by that point. Username registration for API businesses opened in the first half of 2026, with priority access for names matching existing business identifiers. The user-facing username features for personal accounts are expanding through the second half of 2026, so adoption will continue to grow throughout the year and into 2027.
Nuacom brings WhatsApp into the same platform as your phone system. Your team gets a shared inbox for WhatsApp conversations with SLA tracking, assignment, and campaign tools – all alongside call analytics, recordings, and the rest of your business communication in one portal. This makes it much easier to manage WhatsApp at scale, keep customer records consistent across phone and messaging, and make sure inbound conversations – whether they arrive with a phone number or a BSUID – are handled properly without falling through the cracks.
