Map user names for Analysis Services data sources

Hi  ThuJa23 

When you need to give a large number of users access to a data source, using wildcards is a great way to do it. This way you don't need to add users one by one and waste a lot of time.

https://learn.microsoft.com/en-us/power-bi/connect-data/service-gateway-enterprise-manage-ssas#use-a-wildcard 

Or you can create a group, add those users to the group and then Map the group.

Compare types of groups in Microsoft 365 - Microsoft 365 admin | Microsoft Learn

Best Regards,
Community Support Team _ Ailsa Tao