Thanks Marc, very helpful background.
I still don’t know what was wrong with my original syntax 
Something other than that i suppose 
If anybody wants to chime in, I’ve started a discussion about potentially adding “common provider” suggested defaults to the UX.
I’ve set this to “solved” as it certainly appears to be. I’ve marked the post by Marc_Aronson as the solving post. Cheers to all.
Something other than that i suppose 