Authentication templates exist for a single job: sending verification codes for logins, account recovery, and transaction confirmation. They are a WhatsApp alternative to SMS one-time passcodes.
The format is restrictive on purpose: URLs, media and emojis are not allowed, parameters are limited to 15 characters, and the template can include a copy-code or autofill button. Marketing and utility templates cannot be used to send a passcode.
They are charged in their own authentication category, with volume tiers that lower the rate as monthly volume grows, and some markets have a separate authentication-international rate. Rates differ by country, so businesses comparing WhatsApp to SMS for verification should check the current rate card.
