Implementing Power BI into a Software as a Service Platform

Hello community,

I have a client who offers a web-based financial management platform for multiple companies (Software as a Service). The client wants to integrate Power BI into their system to provide a KPI dashboard for each of their customers, with each dashboard displaying data specific to the individual customer (same design, different data).

Do they need a separate Power BI license for each customer to implement this integration, or what is the best way to integrate Power BI into this solution?

Thank you for your support.