Please note that in case of Viber Channel - due to a certain limitation - the Contact ID needs to be provided in a Base64 encoded format.
Send Attachment Request
This request sends attachment in form of URL directly to the Contact as per defined in the Endpoint. The file can either be image, video, audio or file.
Please make sure that the URL provided for the attachment is not downloaded forciblyby the browser (i.e. the Content-Disposition header in the HTTP response should be the default value which is inline)
Send Text with Quick Replies Request
This request send text message with quick replies for the receivers.