Zendesk Recipe: How to send agent assignment greeting messages

Given that a new chat goes to a queue, we want to send an automated greeting message when an agent is assigned. 
 

Create a trigger with the following Conditions. We want it to trigger when the user is assigned for the first time and only for the messaging channel

Create a trigger action. Notify by > Active Webhook and select Delayer Wehbook.  to call Delayer webhook and save it. 
 

with the following payload: 

{
    "add_tag": "ack",
    "delay": 0,
    "message": {
        "author": {
            "type": "business", 
             "displayName":"Bot",
             "avatarUrl": "https://static.zdassets.com/web_widget/latest/default_avatar.png"
        },
        "content": {
            "text": "Dear {{ticket.requester.first_name}}. Our support hero {{ticket.assignee.name}} will be helping you today.",
            "type": "text"
        }
    },
    "ticket_id": "{{ticket.id}}"
}

where 
add_tag the tag to be added to the ticket. 
delay for the message to be sent immediately. 
message structure is in Sunshine conversation format 
displayName is the the name of the sender 
avatarUrl is the URL to the avatar of the sender
text is the message text. 

You can use Zendesk placeholders everywhere 
https://support.zendesk.com/hc/en-us/articles/4408886858138-Placeholder-reference-for-business-rules