I'm in the process of trying to get Twilio to work for alerts from a SharePoint list. 

My requirements:

1) send a text message to predefined group based on a check box on the list form

2) send immediately to all recipients 

3) have it be easy to maintain the list of recipients

Using Twilio, I have created a web request inside my workflow. Near as I can tell I need a separate web request for each recipients number. This is not ideal. 

I really need a way to send to 1 number from Nintex workflow leveraging Twilio and that in turn forwarding the message to the group of recipients. I have not been able to find a service or way to do this. 

I have seen a C# approach to this using Twilio's copilot, but I'm unsure where I'd even use this code inside a Nintex workflow, if it's even possible. 

Any help is greatly appreciated.