Consultants - Sharing Reports and Dashboards with Multiple External Clients

This blog posts speaks directly to my business:

https://powerbi.microsoft.com/en-us/blog/how-consultants-can-work-smarter-with-shared-dashboards/

So, thanks, , for sharing that!

I'm looking for some more details about how this would work. Exactly what kind of account would the external users need to access content I share with them? Do my external users need Power BI Pro licenses if I'm using pro features, like 1-hour refreshing, on my end? Do they need to be O365 users?

I want the process of sharing and accessing reports and dashboards to be as low-friciton for clients as possible, that's the motivation behind all of these questions. I'd like to be able to create and manage accounts for them as much as I can.

We're using a less-than-ideal way to share reports with varied external clients right now. The potential demostrated in this blog post could be huge for us. I really look forward to learning more.

Thanks in advance to anyone who can help pin down these details!

Cheers,

Casey