WA Product Catalogue Message

It will use the List Message object only-

Sample Message Format-

{
 "app_id": "01E9AHW7C686SN0HZ595BH1YYY",
 "recipient": {
 "identified_by": {
 "channel_identities": [
 {
 "channel": "WHATSAPP",
 "identity": "91931XXXXXXX"
 }
 ]
 }
 },
"message": {
 "list_message": {
 "title": "Title for the list message with products",
 "description": "Description for list message with products",
 "sections": [
 {
 "title": "Facebook product catalog item set name",
 "items": [
 {
 "product": {
 "id": "retailer_id_1",
 "marketplace": "FACEBOOK"
 }
 },
 {
 "product": {
 "id": "retailer_id_2",
 "marketplace": "FACEBOOK"
 }
 }
 ]
 }
 ],
 "message_properties": {
 "catalog_id": "catalog_id"
 }
 }
 }
}