A customer finds your business on a Google listing, taps a WhatsApp link and writes, “Hi, do you have availability next Tuesday?” On a one-person business, that message lands on the owner’s phone and gets answered between jobs. On a team of eight, the same message raises harder questions. Whose phone does it ring on? Who answers it? If the person who answered goes on vacation, who sees the history?
WhatsApp gives businesses two very different ways to answer those questions: the WhatsApp Business app and the WhatsApp Business Platform (often called “the API”). This guide explains both, the rules that come with the Platform, and the mistakes that cause trouble.
A note before we start: Meta changes WhatsApp’s business features, limits and pricing regularly. Treat the specifics here as a map, and confirm the current details in Meta’s own documentation before you make decisions.
The two ways to use WhatsApp for business
WhatsApp Business app
The WhatsApp Business app is a free app for Android and iPhone. It looks like regular WhatsApp with business features added:
- A business profile with address, hours, website and description
- A product catalog
- Quick replies, greeting messages and away messages
- Labels for organizing chats
- Short links and QR codes that open a chat with your number
It is designed for a small business where one person, or a few people, handle customer chats. The app runs on one primary phone, and you can link a limited number of additional devices (other phones, WhatsApp Web or desktop) to the same account. Meta has expanded multi-device support over time, so check its help center for the current number of linked devices.
What the app does not give you is a team system. Everyone on a linked device sees every chat. There is no built-in assignment, no record of who replied, no internal notes and no response timers. It also can’t connect to a CRM in any supported way.
WhatsApp Business Platform
The WhatsApp Business Platform is Meta’s offering for medium and larger businesses, and for any team that wants WhatsApp inside other software. There’s no WhatsApp app to install. Instead, your messages flow through an API, and you use them inside a tool such as a help desk, a CRM or a shared inbox.
You can access the Platform in two main ways:
- Directly through Meta’s Cloud API, if you have developers who will build and maintain the integration.
- Through a Business Solution Provider (BSP) or a software product built on the Platform, which handles the technical setup for you.
Because the Platform is accessed through software, the number of people who can work in it depends on the tool you use, not on a device limit.
Side-by-side comparison
| WhatsApp Business app | WhatsApp Business Platform | |
|---|---|---|
| Best for | Owner-operators and very small teams | Teams that need shared access, ownership and reporting |
| How you use it | Phone app plus a few linked devices | Through software built on the API |
| Multiple users | Limited linked devices sharing one view | Depends on the software; usually many users |
| Message templates | Not required | Required to start conversations outside the 24-hour window |
| Cost | App is free | Meta charges for certain messages; your software or BSP may charge separately |
| CRM connection | Not supported | Possible through the API |
| Setup effort | Minutes | Business verification, number registration, template approval |
Which one is right for your team?
Use this quick test:
- Stay on the app if one or two people answer all chats, volume is low and you’re comfortable with everyone seeing everything.
- Move to the Platform if more than two or three people need to reply, you need to know who owns each chat, you want conversation history tied to contacts and deals, or you need to send reminders and follow-ups at scale.
For a broader look at how WhatsApp compares to texting for US customers, read SMS vs. WhatsApp for business.
Getting set up on the Business Platform
The setup steps vary slightly depending on whether you go direct or through a provider, but the building blocks are the same.
1. Create a Meta business portfolio
Your WhatsApp Business Account lives inside a Meta business portfolio (managed in Meta Business Suite or Business Manager). Use a company email address and make sure at least two trusted people from your business are admins. A portfolio owned by a single employee’s personal account is a common source of lockouts later.
2. Complete business verification
Meta asks businesses to verify their identity by submitting documents such as business registration records, utility bills or tax documents that match the legal business name and address. Verification is generally needed to raise your messaging limits and to turn on some features. Make sure the legal name, address and website you submit match each other exactly. Mismatches are a common reason verification gets delayed.
3. Choose and register a phone number
The number you connect needs to meet a few general requirements:
- You must own it or have the right to use it.
- It must be able to receive a verification code by SMS or voice call.
- It can be a mobile or landline number, including many virtual numbers, as long as it can receive that code.
Historically, a number that was active on the WhatsApp app or the Business app had to be removed from the app before it could be registered on the Platform. Meta has since introduced options in some markets that let a business keep using the Business app on a number that’s also connected to the Platform. Availability and limitations change, so ask your provider what applies to your number before you migrate it.
Think carefully about which number you use. If customers already know a number, keeping it avoids confusion. If your current WhatsApp number is someone’s personal phone, a new dedicated business number is usually cleaner. Our guide on moving client chats off personal phones walks through that decision.
4. Set your display name
The display name is what customers see as the sender. Meta reviews it against its display name guidelines. In general, the name should clearly relate to your business, match your branding on your website, and avoid generic words on their own, excessive capitalization or punctuation, or names of other brands. A rejected name can be edited and resubmitted.
5. Create your first message templates
Before you can start conversations, you need approved templates. The next section covers how they work.
Message templates and approval
WhatsApp message templates are pre-written messages that Meta reviews before you can send them. You need a template to message a customer who hasn’t written to you in the last 24 hours, whether that’s a first outreach to an opted-in lead or a follow-up a week later.
Templates fall into categories, and the category affects both review and pricing:
| Category | Used for | Example |
|---|---|---|
| Marketing | Promotions, offers, re-engagement, anything that isn’t strictly transactional | A seasonal discount or “we haven’t heard from you” message |
| Utility | Updates tied to a transaction or request the customer started | Appointment confirmations, order updates, quote ready |
| Authentication | One-time passcodes | Login or verification codes |
Meta may re-categorize a template if it decides the content doesn’t fit the category you chose. A “utility” template with a discount in it will likely be treated as marketing.
Templates can include variables, written as placeholders such as {{1}}, which you fill in at send time. A typical utility template looks like this:
Hi {{1}}, this is {{2}} from Brightline Remodeling. Your estimate for {{3}} is ready. Reply here with any questions, or reply STOP if you’d rather not get updates on WhatsApp.
Tips for getting templates approved:
- Write as the business, in plain language, and say who you are.
- Keep variables surrounded by real text. A template that is mostly placeholders tends to get rejected.
- Don’t put variables at the very start or end of the message.
- Give sample values when the review form asks for them.
- Match the category to the content honestly.
- Avoid vague, urgent or threatening language.
You’ll find ready-to-adapt wording in our WhatsApp follow-up templates.
The 24-hour customer service window
The customer service window is the rule that shapes daily work on the Platform more than any other.
- When a customer sends you a message, a 24-hour window opens.
- Inside that window, you can reply with free-form messages: text, photos, documents, voice notes, whatever the conversation needs.
- Every new message from the customer restarts the 24-hour timer.
- Once the window closes, you can only reach the customer with an approved template.
- If the customer replies to that template, a new window opens and free-form messaging is available again.
In practice, this means slow replies cost you flexibility. If a lead writes on Friday evening and nobody answers until Monday morning, the window is closed, and your first reply has to be a template instead of a natural answer to their question. Teams that sell on WhatsApp usually set a response time target partly for this reason.
Opt-in expectations
Meta’s policies require businesses to get a customer’s opt-in before sending them WhatsApp messages the business starts. In general, a valid opt-in should:
- Make clear that the person is agreeing to receive messages from your business on WhatsApp
- State your business name
- Be collected in a way you can show later, such as a checked box on a form, a reply to an SMS or a recorded verbal agreement noted in your records
A customer who messages you first has started that conversation, and you can reply within the window. For anything proactive afterward, such as reminders or offers, you need appropriate opt-in for that kind of message.
Opt-in can be collected on your website, in a booking form, in person or through a click-to-chat link. Our free WhatsApp link generator creates a link that opens a chat with your number and a pre-filled first message.
Meta’s policy is only one layer. Local laws on marketing messages and data protection also apply, and they differ by country and state. If you message customers outside the US, or send marketing at volume, check with counsel.
Give people an easy way out, too. Honor requests to stop, and don’t keep sending templates to people who never reply.
How Meta prices WhatsApp messaging
Meta charges businesses on the Platform for certain messages. The structure has changed more than once. For several years it was based on 24-hour “conversations” opened by category. In 2025 Meta moved to charging per delivered template message. Under recent rules, free-form replies inside the customer service window have generally not been charged, and some utility templates sent inside an open window have also been free.
What has stayed consistent:
- Rates depend on the template category. Marketing messages typically cost more than utility or authentication messages.
- Rates depend on the recipient’s country. Messaging a customer in the US is priced differently from messaging one in Brazil or India.
- Volume tiers may apply to some categories.
- Your software or BSP may charge on top of Meta’s fees, depending on their model.
We don’t list amounts here because Meta updates them. Check Meta’s current WhatsApp Business Platform pricing page before you budget, and ask any provider how they pass those charges through.
Quality rating and messaging limits
Every Platform phone number has a quality rating that reflects how customers have responded to your messages over recent days. Meta shows it as green (high), yellow (medium) or red (low). The main signals are customers blocking your number or reporting it, and the reasons they give.
Quality matters because it’s tied to your messaging limits: how many unique customers you can send business-started messages to in a rolling 24-hour period. New numbers start at a lower limit. Limits can rise as you send good-quality messages at higher volumes and complete business verification. Low quality can stop your limit from rising, and individual templates with poor feedback can be paused or disabled. Meta has adjusted how limits are calculated and applied over time, so check current rules in WhatsApp Manager.
How to protect your rating:
- Message only people who opted in and expect to hear from you.
- Make the first line clear about who you are and why you’re writing.
- Send fewer, more relevant marketing messages.
- Make it easy to opt out, and honor opt-outs right away.
- Watch the rating in WhatsApp Manager weekly, not only when something breaks.
Common mistakes
These are the issues that come up most often for small teams moving onto WhatsApp:
- Running the business on one employee’s personal WhatsApp. When that person leaves, the conversation history and the customer relationships often leave with them.
- Sharing one phone among the whole team. It works until two people answer the same customer differently, or nobody answers because everyone assumed someone else did. Clear conversation assignment on a shared business number solves this.
- Migrating the number without checking. Moving a number from the app to the Platform can affect chat history on the device. Back up and confirm the process with your provider first.
- Mismatched verification details. A legal name on documents that doesn’t match the website or the portfolio slows verification.
- Writing templates as marketing but labeling them utility. Expect re-categorization or rejection.
- Letting the 24-hour window lapse. Slow first replies push you into templates for what should be a simple conversation.
- Blasting a purchased or old list. Messaging people without opt-in leads to blocks, low quality and lower limits.
- No owner for each conversation. WhatsApp shows messages. It doesn’t decide who answers them.
Setup checklist
Use this before you announce your WhatsApp number to customers:
- Meta business portfolio created with two or more admins on company emails
- Business verification submitted with consistent legal name, address and website
- Phone number chosen, owned by the business and able to receive a verification code
- Display name submitted and approved
- Business profile completed: description, hours, address, website
- Three to five utility templates approved (confirmation, reminder, follow-up)
- Opt-in wording added to forms and booking flows
- Opt-out process agreed and documented
- Response time target set and owners assigned for each shift
- Current pricing checked on Meta’s pricing page and budgeted
Where a messaging CRM fits
The Business Platform gives you the channel. It doesn’t give you the team process: who owns each chat, when a follow-up is due, which deal a conversation belongs to. That’s the job of a messaging CRM.
inChat is a conversation-first CRM in development for small teams, and WhatsApp through the Business Platform is one of its planned launch channels. You can read how it’s designed to work on the WhatsApp channel page, or join early access if you’d like to follow along.