WhatsApp Message Categories: Utility, Marketing, Authentication, Service

WhatsApp sorts every business-initiated message into one of four categories, and getting the category right affects both whether your template gets approved and what it costs. Mislabel a promotion as a utility message and you'll face rejection and recategorization.

Here's a plain breakdown of the four types and how to use each.

The four categories at a glance

WhatsApp messages fall into Authentication, Utility, Marketing and Service. The first three are business-initiated and require approved templates to send outside an open conversation. Service messages are your free-form replies inside an open conversation window.

Category determines approval criteria and price, so picking the right one is both a compliance and a cost decision.

Authentication

Authentication messages deliver verification codes — OTPs for login, signup, password resets and sensitive actions. They use dedicated templates kept strictly to the verification purpose, with no marketing content allowed.

They're high-trust because they're tied to a security action the customer initiated. Use them for codes only; mixing in promotion gets them rejected. See our notifications overview for related transactional sends.

Utility

Utility messages relate to a specific transaction or request: order confirmations, shipping updates, delivery alerts, appointment reminders, payment receipts. They're triggered by something the customer did and provide information they want.

Utility is typically priced lower than Marketing because it's expected and useful. These are the backbone of e-commerce communication — keep them informative, not promotional, to stay in-category.

Marketing

Marketing messages promote: offers, product launches, sales, re-engagement, newsletters. Anything designed to drive a purchase or bring a customer back is Marketing, and it's typically the most expensive category.

Because it's promotional, it requires opt-in and an easy opt-out, and it's where quality-rating risk is highest. Be honest with the category — disguising Marketing as Utility leads to recategorization and penalties.

Service

Service messages are your free-form replies inside the 24-hour window a customer opens by messaging you. No template needed — you can answer naturally. This is the cheapest interaction because the customer started it.

This is why encouraging customers to reach out first is good strategy: Service conversations cost the least and let you respond freely. Automation and an AI agent keep these windows productive.