Whiel register comminucation site as a hub site asking principals

Question

Whiel registering comminucation site as a hub site asking principals
what is the prinicpals?
What we should give when it is prompting? Please help and PFA

I have given $null, but not sure of this..
and how do we know Root site template ( which is there by default)? Pleas help on this one also

Answer 1

@sns The parameter -Principals in the command Register-SPOHubSite is used to specify one or more principles (user or group) to be granted rights to the specified HubSite, it is same with the following setting when registering a hub site via UI:

If you want to register a site as a hub site without setting any principals for it, you can just press Enter for the parameter, like the below:

Or, you can use the following:

Register-SPOHubSite https://contoso.sharepoint.com/sites/Marketing  -Principals $null  

About creating a hub site in SharePoint:
https://learn.microsoft.com/en-us/sharepoint/create-hub-site

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