Authorization header, same as the other WhatsApp send endpoints.curl --location 'https://api.voxa.sa/v1/whatsapp/service-account/sendVideo' \
--header 'Authorization: Bearer eyJh......' \
--header 'content-type: application/json' \
--data '{
"channelId": "YOUR_CHANNEL_ID",
"videoUrl": "https://example.com/video.mp4",
"toNumber": "966501234567",
"caption": "Optional caption text"
}'{
"contactId": "3a1e15...............",
"status": "Sent",
"message": "Message sent",
"conversationEventId": "3a21f2..............."
}