Why the jargon matters
WhatsApp for business comes with its own vocabulary, and most of it decides money or rules. Misunderstand the WhatsApp 24 hour window and your follow-ups fail. Confuse a utility template with a marketing one and you pay more than you planned. Sign up with a provider without knowing what a WhatsApp BSP is, and you may not know who controls your number.
This glossary explains the terms we see owners, receptionists and marketers ask about most. Definitions are short on purpose. Where a term needs more, we link to a longer guide. Bookmark it and come back when an invoice or a setting confuses you.
The WhatsApp 24 hour window, explained first
Because it shapes almost everything else, here is the 24-hour customer service window in more detail. When a customer sends you a message, a window opens for 24 hours. Inside it, you can reply with any message: text, a photo of your price list, a voice note, a location pin. On the Business Platform these replies are free. Each new message from the customer resets the clock.
When the window closes, you can only start a conversation with a template message that Meta has approved, and the customer must have opted in to hear from you. Templates are charged per delivered message, by category and country.
For a booking assistant this is good news. Most booking chats start with the customer and finish within minutes, so they sit inside the free window. Reminders the day before an appointment usually fall outside it and use a utility template. Our after-hours replies page shows a full example.
- Appointment booked: Saved to the calendar
- Reminder (coming soon): Waiting for Meta approval
- Customer confirms / Asks to reschedule
- Calendar stays current: Freed slots reopen
WhatsApp template message meaning, with an example
Searchers often ask about the WhatsApp template message meaning. A template is a reusable message pattern with fixed text and variables. For example:
Hi {{1}}, a reminder of your {{2}} appointment tomorrow at {{3}}. Reply 1 to confirm or 2 to reschedule.
You submit it once, Meta approves it, and your system fills in the name, service and time each time it sends. Meta reviews the category too. A reminder is utility; a "20% off this weekend" message is marketing, even if you wrap it in a reminder.
Platform basics
Start here if you are new to WhatsApp for business.
- WhatsApp Business app: The free app for small businesses, available on Android and iPhone. It adds a business profile, catalogue, labels, quick replies, greeting and away messages to normal WhatsApp. One phone plus linked devices.
- WhatsApp Business Platform: Meta's programmable product for businesses that need automation, integrations or several team members on one number. People often call it the WhatsApp API. Our post on the WhatsApp Business app vs API compares the two.
- Cloud API: The version of the Business Platform hosted by Meta. Almost all new integrations use it. Meta has retired the older on-premises API.
- Business portfolio (Business Manager): The Meta account that owns your WhatsApp Business Account, Facebook Page, Instagram account and ad accounts. You manage access and verification here.
- WABA (WhatsApp Business Account): The container for your business phone numbers and message templates on the Business Platform. One business portfolio can hold several WABAs.
- Business verification: Meta's check that your company is real, using documents such as a trade licence or registration certificate. Verification raises messaging limits and is required for some features.
- Display name: The business name customers see. Meta reviews it against your brand and website.
- Official business account: A business account with a verified badge, issued by Meta to notable brands after review. Most small businesses do not need it.
- WhatsApp Business app: Keep chatting from your phone
- Same number: Nothing to delete
- NextReply AI: Answers through the platform
Messaging rules
These terms decide what you can send, when, and whether it costs money.
- 24-hour customer service window: The period after a customer's last message during which a business can reply with any free-form message. Each new customer message restarts it. Replies inside the window are free on the Business Platform.
- Free-form message (session message): Any normal reply inside the 24-hour window: text, images, voice, documents. No template needed.
- Template message: A message pre-approved by Meta that a business can send outside the 24-hour window, for example a reminder or an order update. Templates may contain variables such as the customer's name and appointment time.
- Template category: Every template is marketing, utility or authentication. The category sets the price and the rules. Meta can recategorise a template it thinks is labelled wrongly.
- Marketing template: Promotions, offers, reactivation messages and anything that tries to sell. Charged at the highest rate in most countries.
- Utility template: Messages tied to a transaction the customer started, such as a booking confirmation or appointment reminder. Free when sent inside an open customer service window since July 2025.
- Authentication template: One-time passcodes for log-in and verification.
- Opt-in: The customer's permission to receive template messages from you. WhatsApp requires it before you message someone first. Record when and how you got it.
- Free entry point: A conversation that starts from a click-to-WhatsApp ad or a Facebook Page call-to-action button. If the business replies within 24 hours, messages in the following 72 hours are free.
- Quality rating: Meta's score for your number, based on how customers react to your messages, such as blocks and reports. Low quality can reduce your limits.
- Messaging limit: The number of unique customers a business can start conversations with in a rolling 24-hour period. It grows as you send good-quality messages.
Pricing terms
Pricing words you will see on Meta's rate card and invoices.
- Per-message pricing: Meta's model since 1 July 2025: each delivered template message is charged by category and the recipient's country. It replaced per-conversation pricing.
- Rate card: Meta's published table of prices per template category and market. Check the current one before budgeting; rates change.
- Volume tiers: Lower utility and authentication rates once monthly volume passes set thresholds in a market.
- Billing currency: The currency Meta invoices you in. Meta has added local billing currencies in some markets, for example Indian rupees.
For what these mean in money, see our pricing page, which also answers how Meta charges relate to your NextReply plan.
What is a WhatsApp BSP, and other provider terms
Who is who in the WhatsApp software world.
- BSP (Business Solution Provider): A company approved by Meta to help businesses access the Business Platform, handle onboarding, and sometimes resell messaging. Many tools work through a BSP or with the Cloud API directly.
- Tech provider: A software company that builds on the Business Platform and onboards its customers through Meta's embedded sign-up flow.
- Embedded signup: The pop-up flow that lets a business connect its WhatsApp number to a software product in a few steps, without leaving that product.
- Webhook: An automatic message one system sends to another when something happens, such as a new booking. On NextReply's Business plan, every booking can go to your CRM by webhook.
- Coexistence: A Meta feature that lets you connect a number already used in the WhatsApp Business app to the Business Platform and keep using both. Read about WhatsApp Coexistence.
- Linked devices: Extra phones or computers logged in to one WhatsApp Business app account. Useful for small teams, but limited compared with a shared inbox.
Automation terms
Words for what happens without a person typing.
- Greeting message: An automatic welcome in the WhatsApp Business app for first-time customers or those inactive for 14 days.
- Away message: An automatic reply in the WhatsApp Business app for times you set as unavailable.
- Quick replies: Saved answers in the WhatsApp Business app, triggered by typing a slash and a shortcut.
- Chatbot: Software that replies to messages automatically. Older bots follow fixed menus; AI assistants understand free text and voice.
- AI receptionist: An AI assistant that acts as a front desk: it answers questions, books appointments and passes chats to staff. This is what NextReply does.
- Human handoff: Passing a chat from the assistant to a person, with the context, when the customer asks or the topic needs it.
- General-purpose AI chatbot: An open-ended AI assistant offered as the main product. Meta barred these from the Business Platform from 15 January 2026; business assistants for customer service remain allowed.
NextReply sits in this last group: an AI receptionist that books into Google Calendar and hands off to your team. See all features, the booking flow and how it works.
Terms from other channels
- Instagram Direct (DMs): Instagram's messaging inbox. Businesses can reply freely within 24 hours of the customer's last message.
- Human agent tag: a Meta tag that lets a person (not a bot) reply on Instagram or Messenger up to seven days after the last customer message.
- Messenger: Facebook's chat app, linked to your Facebook Page.
- Telegram bot: an automated account on Telegram. Bots cannot message a user who has not started a chat with them.
NextReply works on WhatsApp today; Instagram DMs, Messenger and Telegram are coming soon. Plans start at $29 a month, with a 7-day free trial. See channels, browse industries, or go to the home page.