In Singapore, WhatsApp is part of everyday life. Customers use it to ask property agents about listings, book tuition classes, check on deliveries, order from home bakers and chat with clinics. For businesses, that makes WhatsApp a natural channel for enquiries, sales and service. As volumes grow, the official WhatsApp Business Platform, often called the WhatsApp Business API, becomes the way to do it professionally.
This guide explains what the API offers, how pricing works, the Singapore rules that apply and how to get started.
This article is general information, not legal advice.
WhatsApp Business app vs API
Business app
Free, installed on a phone, with a business profile, catalogue, quick replies and labels. It suits small businesses with one or two people handling chats, but it has limited multi-user support and restricted broadcast features.
Business Platform (API)
For growing and larger businesses, accessed through Meta's Cloud API or a Business Solution Provider (BSP). It offers:
- A shared inbox with multiple agents
- Chatbots and automation
- Approved template messages for notifications and opted-in marketing
- Integrations with CRMs, e-commerce, booking and payment systems
- Interactive messages: buttons, lists, product catalogues and flows
- Verified business identity, subject to Meta's criteria
How Meta pricing works
Meta charges for template messages based on the category (marketing, utility or authentication) and the recipient's country code. Under Meta's current model, customer service messages sent within 24 hours of the customer's last message are generally free, and utility templates sent within that window may also be free. Prices change from time to time, so check Meta's latest rate card. Your BSP may add a platform fee.
The Singapore rules
Meta's policies
You must have opt-in from customers before sending them messages, follow the WhatsApp Business Messaging Policy and Commerce Policy and respect quality ratings. Certain goods and services are prohibited or restricted.
PDPA and the DNC Registry
The Personal Data Protection Act applies to personal data such as phone numbers and chat content. Collect it with consent and for stated purposes, protect it, retain it only as needed and respond to access and correction requests.
The Do Not Call provisions of the PDPA apply to specified messages (marketing messages) sent to Singapore telephone numbers, and the PDPC has indicated that this can include messages sent through instant messaging apps. Unless you have clear and unambiguous consent in written or other accessible form, check numbers against the DNC Registry before sending marketing messages, and include your organisation's identification and contact details.
Sector rules
Financial institutions follow MAS guidelines, including on customer communications and anti-scam measures. Healthcare providers must follow the Healthcare Services Act and its advertising requirements. Property agents follow the Council for Estate Agencies' rules on advertising and conduct.
High-value use cases in Singapore
- Property: listing enquiries, viewing confirmations and document sharing for agents, following CEA rules
- Education and tuition: class schedules, reminders and parent updates
- F&B and home businesses: orders, pickup times and menus
- E-commerce: order confirmations, delivery updates, abandoned cart reminders for opted-in customers
- Clinics and wellness: booking and reminders, without sensitive health details
- Services: quotes, appointments and follow-ups for aircon servicing, renovation and cleaning
Collecting opt-ins
- A checkbox on web forms stating that customers agree to receive messages from your business on WhatsApp
- Click-to-WhatsApp ads, where the customer starts the conversation
- QR codes at counters, on receipts and packaging
- An in-chat opt-in for promotions, such as "Reply YES to receive member offers here"
Record the date, source and wording of each opt-in.
Writing good WhatsApp templates
- Be clear and specific
- Personalise with names and order details
- Use buttons for common actions, such as "Confirm", "Reschedule" or "Track order"
- Keep marketing templates relevant and include a way to stop promotions
- Avoid anything that resembles a scam, such as urgent payment demands or unexplained links
Scam awareness
Scammers in Singapore often impersonate businesses on messaging apps. Protect customers by getting your business verified where eligible, publishing your official WhatsApp number on your website, never asking for passwords or OTPs, and telling customers how you will and will not contact them.
Setting up the API
- Verify your business in Meta Business Manager.
- Choose a phone number not already registered on WhatsApp, or migrate an existing one.
- Connect via Meta's Cloud API or a BSP.
- Create and submit message templates for approval.
- Set up the shared inbox, automation and integrations.
- Train staff on response times, privacy and escalation.
Automation and chatbots
A chatbot can answer FAQs, capture lead details, check order status and book appointments, then hand over to a person when needed. Keep a clear path to a human, especially for complaints.
Measuring results
- Response time and resolution time
- Enquiries converted to sales or bookings
- Template read and click rates
- Opt-outs, blocks and quality rating
- Customer satisfaction scores
Pricing
| Service | DND Teams (starting from) | Includes |
|---|---|---|
| WhatsApp Business API | from S$59 per month platform fee | Shared inbox, templates, basic automation (Meta fees separate) |
| Chatbot setup | from S$349 one-time | FAQs, lead capture, booking flows, human handover |
| Integration | from S$299 one-time | Shopify, WooCommerce, CRM or booking system integration |
| Business app setup | from S$99 one-time | Profile, catalogue, quick replies, labels |
These prices are positioned below typical Singapore BSP and agency rates. Contact us for an exact quote.
Common mistakes
- Messaging contacts without opt-in
- Skipping DNC checks for marketing messages without clear consent
- Using unofficial bulk tools that breach WhatsApp's terms
- Sending too many promotions and losing quality rating
- Slow responses during business hours
- Sharing sensitive data in chats unnecessarily
Multilingual messaging
Singapore's customers communicate in English, Mandarin, Malay, Tamil and other languages. WhatsApp templates can be created in multiple languages, so consider offering key notifications in the languages your customers prefer, written by fluent speakers. A chatbot can ask customers for their preferred language at the start of a conversation and route them to staff who speak it.
WhatsApp and SMS together
WhatsApp suits rich, two-way conversations, but not every customer uses it or reads it promptly. Use SMS as a fallback for critical messages such as OTPs, appointment reminders and delivery alerts, sent from your registered sender ID. See our Singapore bulk SMS guide.
Choosing a BSP
Ask any provider about pricing transparency, including whether Meta fees are passed through at cost, support hours in Singapore time, data storage and security, integrations with your systems, template approval support and how they handle quality rating issues. Make sure you own your WhatsApp Business account and phone number, so you can switch providers if needed.
Payments and commerce
Many Singapore customers are comfortable paying by PayNow, cards or e-wallets. A WhatsApp flow can share an order summary and a secure payment link from your payment provider, then confirm payment automatically. Never ask customers to send card details in a chat, and make sure payment links come from your official domain or a trusted payment provider.
Handling complaints
When customers complain on WhatsApp, respond quickly, acknowledge the problem and move to a resolution. Escalate to a supervisor when needed and record the outcome in your CRM.
How DND Teams helps
We set up and manage WhatsApp marketing in Singapore, from API onboarding and templates to chatbots and integrations. Read our Singapore WhatsApp compliance overview and request a free consultation.
Prices shown are indicative "starting from" figures in local currency and exclude taxes and third-party charges (such as Meta or carrier fees) unless stated. Contact us for an exact quote. This article is general information, not legal advice, and reflects our understanding as of October 2026.