WA List Message

Objects
Title	String
Required	A title for the message that is displayed near the products or choices.
Sections Required	Array of objects (List Section) List of ListSection objects containing choices to be presented in the list message.
Description	String This is an optional field, containing a description for the message
message_properties	Object Additional properties for the message. Required if sending a product
list message.

JSON Object Parameter in Message_properties Object-

Attribute	Description
catalog_id	String Required if sending a product list message. The ID of the catalog to which the products belong.
Menu	String Optional. Sets the text for the menu of a choice list message.

Structure of Sections object—It consist of an Array in the below format-

Attribute	Description
Title	String Optional parameter. Title for list section.
Items	Array of objects (List Item).

Structure of Items object—It consist of an Array in the below format-

Attribute	Description
item required	choice (object) or product (object) Item information.

Choice Object details-

Attribute	Description
title required	String Required parameter. Title for the choice item.
description	String Optional parameter. The description (or subtitle) of this choice item.
media- optional	Object (Media Message)- The media of this choice item.- Url String required Url to the media file. thumbnail_url String optional An optional parameter. Will be used where it is natively supported.
postback_data	String Optional parameter. Postback data that will be returned in the MO if the user selects this option.

Sample Message Format-

{
 "app_id": "01E9AHW7C686SN0HZ595BH1YYY",
 "recipient": {
 "identified_by": {
 "channel_identities": [
 {
 "channel": "WHATSAPP",
 "identity": "917764863625"
 }
 ]
 }
 },
 "message": {
 "list_message": {
 "title": "Choose your icecream flavor",
 "description": "The best icecream in town!",
 "sections": [
 {
 "title": "Fruit flavors",
 "items": [
 {
 "choice": {
 "title": "Strawberry",
 "postback_data": "Strawberry postback"
 }
 },
 {
 "choice": {
 "title": "Blueberry",
 "postback_data": "Blueberry postback"
}
 }
 ]
 },
 {
 "title": "Other flavors",
 "items": [
 {
 "choice": {
 "title": "Chocolate",
 "postback_data": "Chocolate postback"
 }
 },
 {
 "choice": {
 "title": "Vanilla",
 "postback_data": "Vanilla postback"
 }
 }
 ]
 }
 ],
 "message_properties": {
 "menu": "Menu"
 }
 }
 }
}