How it works
An SMS API lets software send messages and receive status updates; authentication, rate limits and error handling are essential. Mobile messages travel through carrier networks and messaging platforms. Channel, encoding, templates and route limits affect delivery, timing and cost.
Business example
A website sends a one-time verification code through an SMS API after a user request.
What to consider
Before sending, check recipient consent, contact accuracy, character limits, delivery reporting and a convenient opt-out for marketing messages.