WhatsApp Business API

WhatsApp for Business with Smsbox Notification

Send and receive business WhatsApp messages through our shared sender. No WhatsApp number of your own, no Meta account and no subscription — straight from the online tool or via the API.

1.6 credits per template message — session messages 0.5 and inbound messages 0.25 credits
  • OTP, notifications and two-way communication
  • On request: you activate it from your smsbox account, we switch it on
  • Pay per message, no monthly cost
WhatsApp conversations in the SMSBOX online tool

Pricing

No subscription, no set-up fee

Smsbox Notification is billed per message with credits, from the same balance as your SMS messages. No monthly cost and no minimum term.

1.6 credits per message

Template message

You start the conversation with a template approved by Meta.

1.4 credits per message

Verification code (OTP)

One-time code via WhatsApp, falling back to SMS.

0.5 credits per message

Session message

Your reply within 24 hours after your customer responded.

0.25 credits per message

Inbound message

Every message your customer sends back to you.

Included in Smsbox Notification

  • Send and receive WhatsApp messages
  • OTP, notifications and two-way conversations
  • Shared sender: Smsbox Notification
  • Business communication only — no marketing
  • Share photos and images
  • Send documents (PDF, Word, ...)
  • Emoji and reactions
  • Share location and worldwide reach
  • SSL encrypted connection
  • Online tool available 24/7 and sending via the API

How to activate WhatsApp

WhatsApp is not switched on by default. You request it from your smsbox account and we activate it for you manually.

  1. 1Create a free smsbox account or log in.
  2. 2Choose WhatsApp in the menu and click "Request WhatsApp".
  3. 3We activate WhatsApp on your account, usually within one working day.

You need credits to send and receive WhatsApp messages. Activation itself is free of charge.

Credits are required to send and receive messages. Without credits, communication is not possible.
They are the same credits you use for SMS.

What can you use it for?

Everything runs through the shared number of Smsbox Notification. You need neither your own WhatsApp Business number nor your own Meta account.

Verification codes (OTP)

Send one-time codes via WhatsApp, falling back to SMS when your customer is unreachable on WhatsApp. Read more about OTP and verification.

Notifications

Appointment reminders, order confirmations, delivery updates and payment reminders. They go out from the shared number, with your company name inside the message.

Two-way communication

Once your customer replies, you can chat freely for 24 hours in the same conversation. Those session messages cost fewer credits than a template.

How does it work?

Through our online tool you send WhatsApp messages to your customers. To start a conversation, a fixed template message is used — this message is predefined and cannot be modified. All messages are sent securely via the shared sender Smsbox Notification.

Infographic of the WhatsApp for Business message flow

What are template messages?

WhatsApp does not let businesses message just anyone. To start a conversation yourself, you use a template: a message that has been approved by Meta in advance. A template contains placeholders ({{1}}, {{2}}, …) that you fill in for each message, for example with a name or a date. Once your customer replies, you can chat freely for 24 hours without a template.

  • Approved by Meta in advance, so always ready to send
  • Standard templates are ready to use: appointment reminder, order confirmation, payment reminder and more
  • Need a custom template? Request it via the customer portal and we handle the approval with Meta
  • Send from the online tool or automatically via the API

Developer? The API documentation explains how to send templates via the API.

1. The template

Dear {{1}}, this is a reminder of your appointment on {{2}} at {{3}}.

2. Your values

["Jan", "21 August", "2:30 pm"]

3. What your customer receives

Dear Jan, this is a reminder of your appointment on 21 August at 2:30 pm. 14:02 ✓✓

These standard templates are ready to use

Available as soon as your account is active — in Dutch, French and English. You fill in the placeholders {{1}}, {{2}}, … for each message.

Appointment reminder

Dear {{1}}, this is a reminder of your appointment on {{2}} at {{3}}. If you are unable to attend, please let us know in time.

Order confirmation

Dear {{1}}, thank you for your order! We have received order {{2}} and will keep you informed about the shipment.

Delivery update

Good news! Your order {{1}} is on its way and will be delivered on {{2}}. Track your shipment here: {{3}}. Thank you for your order!

Payment reminder

Dear {{1}}, this is a friendly reminder that invoice {{2}} of {{3}} is still open. Please pay before {{4}}. Already paid? Please ignore this message.

Verification code

{{1}} is your verification code. For your security, do not share this code.

Your own template

Need something else? Request your own template via the customer portal — we handle the approval with Meta, usually within a day.

Frequently asked questions about WhatsApp Business

You send WhatsApp messages from our online tool via Smsbox Notification, our secure shared sender. A conversation always starts with a template message approved by Meta in advance.
Yes, customers can send WhatsApp messages back to you. You receive incoming messages directly in your SMSBOX dashboard and reply within the same conversation. Once your customer responds, you can chat freely for 24 hours using session messages, so without a template.
There is no subscription: you pay per message with credits. A template message costs 1.6 credits, an OTP 1.4 credits, a session message 0.5 credits and an incoming message 0.25 credits. They are the same credits you use for SMS.
You can attach images, PDF and Word documents and more. WhatsApp Business also supports emojis and reactions.
WhatsApp is not switched on by default. You request it from your smsbox account: choose WhatsApp in the menu and click "Request WhatsApp". We activate it manually, usually within one working day. Activation is free of charge.
As soon as we have switched WhatsApp on for your account, you can send straight away from our online tool or via the API. You need neither your own WhatsApp number nor a Meta account, just credits on your account.
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