Emails get ignored. SMS feels impersonal. WhatsApp Business API lets you send notifications, verification codes and campaigns where your customers already are — with open rates of over 95%.
Accessing WhatsApp Business API requires a strict onboarding process with Meta, deep technical integration, connection maintenance, template management and ongoing compliance with Meta policies. SMSAlert has completed all these steps as a certified tech partner.
You don't interact directly with the Meta API — you send through the unified SMSAlert API, the same endpoint you already use for SMS or push. Routing, Meta authentication, retries and SMS fallback are handled automatically.
Many confuse the three. They are different products for different needs.
The app we all use. 1-to-1 conversations with friends and family. Cannot be integrated into business systems.
App for SMBs. You send manually from your phone. Good for small volumes, but does not integrate with your CRM or systems.
The interface for companies that want to automatically send thousands of messages — from CRM, app, e-commerce or any system. Requires integration and Meta approval. Exactly what SMSAlert does for you.
Meta classifies messages into three categories — each with its own pricing and approval rules.
Messages related to an action the customer has already taken or is expecting.
Security messages with one-time codes for identity confirmation.
Promotional messages sent to customers who have consented to receive communications.
WhatsApp does not allow companies to send any message at any time — just like email marketing, where you need consent. Templates are pre-approved messages by Meta, which guarantee that users receive only relevant and expected messages.
In practice: you create a template, SMSAlert submits it to Meta for approval, and within a few hours you can use that format with each customer's dynamic data (name, order number, OTP code, etc.).
When a customer sends you the first message on WhatsApp, a 24-hour service window opens in which you can reply with any text, without needing a pre-approved template and without additional cost per message.
In practice: if a customer asks something, your team can have a natural conversation with them for 24h — just like on regular WhatsApp, but everything visible in the SMSAlert inbox, assigned to the right agent, with full history.
The numbers speak for themselves.
SMSAlert manages the entire relationship with Meta on your behalf — onboarding, business number verification, template approval. You get an API key and send messages from day 1.
Get started →Fill in your company details and the phone number dedicated to WhatsApp. We handle the Meta verification process on your behalf.
From the SMSAlert dashboard you create the templates you need. We submit them to Meta and notify you when approved — usually within a few hours.
Same endpoint as for SMS. Just add
Every message has a real-time status (sent, delivered, read). Customer replies appear in the CRM Chat inbox, ready to be handled by your team.
Not all your customers have WhatsApp installed or their phone number linked to an active account. SMSAlert detects this in real time and delivers the message via SMS without you doing anything.
Configurable rules: you choose when and how the fallback kicks in.
WhatsApp Business API involves two independent cost components. The SMSAlert fee is fixed; the Meta fee varies based on message type and recipient's country.
No minimum subscription. Pay only what you use.
Meta fees are billed separately, directly to your Meta Business account.
For volumes over 100,000 messages/month we offer negotiated rates on the SMSAlert fee and assistance in optimizing Meta conversation types.
Have another question? Write to us directly.
"channel": "whatsapp" field in the request and, optionally, the template ID. The rest — authentication, endpoint, response format, webhooks — stays identical. You can test on a single message type and gradually expand.
Activate WhatsApp Business API through SMSAlert in a few days and start sending notifications that customers actually open.
No minimum subscription. Pay per message sent. Active in 1–3 days.