Ok - that all makes sense. Being new to Bubble its these design decisions that arent found in videos or blogs so this support has been invaluable!
My takeaway is that it is not possible to dynamically populate the service host url using a globally accessible variable. I was hoping to do this to efficiently accommodate the fact I will have bubble connecting to sandboxes that use different host prior to production. This limitation means if I use connector authentication that manual reconfig for all services is necessary.
You can dynamically do it when using API call with square brackets like [sandbox]server.com.
And you will be able to set Isn’t live version:format as text (true = sandbox. false, leave it empty). This is just an example.
You can replace the whole URL if you want.
So if you want to do that, just do the WF manually instead of letting Bubble do the Authentication part.