Power Automate is an online workflow service that automates actions across the most common apps and services. For example, you can create a flow that adds a lead to Microsoft Dynamics 365 and a record in MailChimp whenever someone with more than 100 followers tweets about your company.
When you sign up, you can connect to more than 500 services, and can manage data either in the cloud or in on-premises sources like SharePoint and Microsoft SQL Server. The list of applications you can use with Power Automate grows constantly.