While working to setup an export from Activity Log to an Event Hub I got no response on a save action. This took some time to figure out why this happened, so I thought it could be helpful for someone else.
When saving the export setting via this blade:
I got this error:
After scratching my head a little I checked the browsers console log:
Well, what do you know! Apparently the resource provider
microsoft.insights hasn’t been registered yet! Would have been a nice message inside of the Portal itself, but at least now I can fix it!
Go to your subscriptions, pick the correct one and navigate to resource providers:
microsoft.insights provider and save the export option again. Problem solved!
You can also fix this via PowerShell, as you can read on Pascal Nabers blog.