Send a Viber Verification Message (OTP)

Comma-separated response fields to include.

Unique identifier of the Viber sender (from your sender configuration). Used for routing and tracking

Recipient phone number in **E.164** format (e.g. `+306912345678`). Must include `+` and country code

Time-to-live in **seconds** for the OTP delivery attempt

Your own sequence or correlation ID for this request (e.g. for linking request and response or callbacks)

Message label. Allowed values: `transactional`, `promotional`

OTP message type. Allowed values: `PRIMARY_ONLY`, `ALL_DEVICE`

ID of the OTP template to use. See [Templates inventory](https://docs.routee.net/docs/templates-inventory)

Key-value map of template variables. Keys in **camelCase** (e.g. `pin`, `businessPlatformName`, `codeValidityTime`). See [Template variables validation](https://docs.routee.net/docs/template-variables-validations)

Language of the template (ISO 639-1, e.g. `en`, `el`). See [Localization](https://docs.routee.net/docs/localization)