Responses

Success response

Queue message endpoints return 200 OK when the request is accepted.

{
  "queued": true
}

This response confirms the message was queued successfully. It does not confirm final delivery.

All API errors follow the Problem Details specification.

Status	Error	Description
`401`	`Unauthorized`	No authenticated user and no valid `X-API-KEY`.
`400`	`RecipientMissing`	The raw payload did not include `recipient`.
`400`	`TemplateKeyRequired`	The raw payload did not include `template.name`.
`400`	`WhatsAppBusinessIdRequired`	The raw request did not include `whatsappBusinessId`.
`400`	`PhoneNumberIdRequired`	The raw request did not include `phoneNumberId`.
`400`	`WhatsAppBusinessIdDoesNotBelongToApp`	The WABA does not belong to the app token.
`400`	`AppNotLinkedToWhatsAppBusiness`	The app is not linked to a WhatsApp business account.
`400`	`TelegramChatNotLinked`	A dev token was used but no Telegram chats are linked to the app.
`400`	`RecipientRateLimitExceeded`	The app’s per-recipient rate limit was exceeded.
`400`	`InsufficientBalance`	The account balance is too low to cover the message cost.