Thank you for the reply. My apologies for not being clear. And perhaps this is the wrong approach, let me try to fill in where I can.
I'd like to call the action from the blueprint. I'm not set on how this will be done, but I've done it in the past by using an external source on a form element like this:
The goal is that when a user is provisioning a VM and when they select a network from a blueprint dropdown item, it will calculate the real time utilization of the selected IP range by calling an action or workflow from vRO and then present that back to the user on the request form. There may be better ways to do this, I'm not opposed to any of them, this just happens to be the way I'm familiar with.
The input of properties would probably work, but it would still be hard coded in a sense. Am I understanding that correctly? My teams goal is to pull this from existing data within vRO. Here is the endpoint in vRO which a has all the data we need.
Again, thank you for taking the time to reply. Any input here is very much appreciated!