Triggers - add recipient "To" Agency if the action is to "Send channel message"
If the action was to send an email, you would be able to choose the agency as a recipient.
However, if the action chosen is to Send a Channel Message, it is not possible to copy the agency.
This should be a useful feature to add. As managers need to get notified every time something is sent to a guest, instead of them going and check the message history several times a day to see what has been sent. Many managers including us use smartbnb (hospitable) for automated messaging and that does send a notification email every time something is sent to the guest. I have seen cases where messages are sent in error or at wrong time, either due to glitches in the system or due to misconfiguring things from our side, but either way , when we get notified that a message like that has gone out , we send a followup message to the guest right away clarifying things.
Cece Nguyen
shared this idea
By definition, channel messages are not email messages, so there is no way for the system to "CC" the agency/PM when such message is sent. This being said, those messages will automatically show in the PM Inbox - so this is not a "notification" per say, but there will be a trace for all the messages sent this way.