Bulk SMS & WhatsApp Business API
We provide SMS and WhatsApp messaging for businesses, from OTP and transactional alerts to bulk campaigns and API integration.
Why choose STWIN Sparx for SMS and WhatsApp messaging
Messages reach customers only when they are delivered reliably and sent to the right people. We set up APIs and campaigns with delivery tracking, so OTPs, alerts and promotions work as expected.
- API integration with your website or app
- Transactional, OTP and promotional messaging
- Delivery reports and template setup for WhatsApp Business
Frequently asked questions
Do I need to register for WhatsApp Business API?
Yes, your business needs a WhatsApp Business account. We guide you through the setup and template approval process.
How do you ensure OTP messages are delivered quickly?
We use reliable gateways, set sensible retry limits and track delivery reports so you can see failures and fix them.
Can you connect SMS alerts to my website or app?
Yes. We integrate SMS and WhatsApp APIs with your website, app or CRM for order updates, OTPs and reminders.