DATAFLOWS Schedule with exception handling

Hi again.

I have 6 dataflows that are all dependant on each other. 1 must run then 2 then 3 and so on. The dataflows take a long time to run. In excess of an hour each one 😞 So, schedule them to run overnight. However I want to have some control over exception. Don't run 2 if 1 didn't succeed and so on. Is this possible? Powerapps must keep a record somewhere in it's 'refresh history'. How can I look at a log or whatever and see that a Dataflow has succeeded before running the next dataflow?

What use is a scheduler without exception handling Microsoft?

Paul.