Inside Microsoft's own stack, Power Automate does a lot of the lifting: it can move data between Dynamics 365 and Outlook, SharePoint, Teams, and other Microsoft 365 apps with pre-built connectors and minimal setup. That part genuinely works well out of the box.
The moment a system on the other end isn't Microsoft, a CRM you haven't fully retired, an e-commerce platform, a warehouse or field-service tool, that pre-built path usually disappears. Some larger platforms maintain their own Dynamics 365 connector; most don't, and Power Automate's generic HTTP connector only gets you partway before you're writing real integration logic against Dataverse's Web API or a module's REST endpoints.