Purpose
In Office 365 each Office 365 group has the automatic reply settings. However there are some disadvantages with this native method:
AutoReplyGroup flow has the following features:
The product is a PowerAutomate (MS Flow) template.
Current version: 1.0.0.2
Testing
Limitations
What you get after purchase
You'll get a link to the file named autoreplygroupflow1002.zip. You have to download this file and then import it to your flows list as described here.
Prices
Licensing policy: the product is licensed based on the number of shared mailboxes where it will run. If you wish to set the flow on 3 shared mailboxes you have to buy 3 licenses.