System.UnauthorizedAccessException using New-PnPSite

[svermaak]

I followed this process to generate and register a client ID and client secret
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs

Then I used it to connect

I can get information

But I cannot create a site

[svermaak]

I believe a certificate needs to be created
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azuread