What is Bulk SMS marketing?

Bulk SMS marketing is a service that allows businesses to send promotional or transactional SMS messages to thousands of customers instantly.

What is WhatsApp marketing?

WhatsApp marketing allows businesses to send offers, updates, and notifications to customers using the WhatsApp Business API.

Is SMS marketing effective for business?

Yes, SMS marketing has an open rate of more than 90% which makes it one of the most effective marketing channels.

SMS Marketing March 14, 2026 TheSMSBox Team

Understanding WhatsApp API Rate Limits for Bulk Messaging

Understanding WhatsApp API Rate Limits is essential for businesses using bulk messaging. This guide explains how WhatsApp controls message sending limits, why these limits exist, and how you can manage bulk campaigns without getting your WhatsApp Business API blocked. Learn the best practices to send messages safely and efficiently.