Viva Insights and Power BI AMA

Hi Sonia, you seem to be doing the right things:

1. Assign licenses to the population you want to analyze in Advanced insights. Make sure you assign 10 or more licenses.
2. Assign the Insights analyst role to the users you want to give access to Advanced insights
3. Go to Microsoft Viva Insights (office.com)

If you are still getting the "Oops! You've not been assigned role in Viva Insights yet." there's a chance that your company has implemented PIM and you need to activate the role. Check this article out: Activate a role