Sends an interactive message with reply buttons or a single URL button.

Before you call

• from (your connected WhatsApp number) is required, plus to (customer's phone number with country code) or customerId. groupId is not supported.
• content.body is required, up to 1024 characters.
• Send exactly one of content.buttons (reply buttons, each with a unique id and a title) or content.ctaButton (one URL button).
• ctaButton.display_text is up to 20 characters. ctaButton.url must start with http:// or https://.
• content.header is optional text, up to 60 characters, with no formatting characters (*, ~, ```).
• content.footer is optional, up to 60 characters.
• messageId is optional. If you send it, it must be a UUID v4. If you don't, DoubleTick generates one.

How it works

• The message is queued for sending. The response contains recipient, status (SENT or FAILED, with errorMessage) and messageId.
• Use the messageId with Get Message Status to check delivery and read status.