Hi, great course learning a lot.
First time to post here, so excuse me if I’m not posting my question in the right place.
In the course entitled "Financial Reporting with Power BI, in the module “Developing your data model and creating the right relationships” , I noticed that you do not make a relationship from the customer table to the invoice table. Why is that? Both of these tables have the field “customer index”. Without this relationship can the two tables still interact?