Related lists, and parent-child forms are a very common requirement when building business solutions in SharePoint.
Are you moving to PowerApps from older legacy technologies like InfoPath and MS Access? With related lists and tables, and SharePoint lookup columns, there are some important details to understand in order to work with these types of relationships in your apps.
In this session, learn how to configure your sub-forms, repeating tables, and cascading drop-downs with SharePoint lists and libraries. Apps that have dashboards of related lists, can even be used as a replacement for old classic connected web parts on a page. With this knowledge, you'll walk away with a fundamental understanding of how to build your own business solutions the right way with PowerApps, and apply these principals in many types of SharePoint scenarios.