Automating Fabric Notebook using Power Automate

In my experience thi is caused by not putting in the right resource URI for the Entra Auth connection. Annoyingly if doing One Lake rest AND Fabric rest operations you need two connections as they need to have different resource URIs. I've found that you can create multiple but you can't name them, so its a bit pot luck when you look at your list of entra connections which is created with which URI