I have found a few functions that fail if they receive more than a single input.
Mimecast Report Message as Phishing for example.
One message ID works, but if the input is two messages comma delimited it fails. I have tried the split feature and created a list, but again, the input fails to handle it. I need a way to do a for each Message ID loop statement.
I'm encountering the same problem with other actions. Currently I solve this by modifying the the action in the IDE to accept lists as well.
But I hope that there will be a loop/iteration action or other way to have this supported natively.