The on-premises data gateway acts as a bridge, providing quick and secure data transfer between on-premises data (data that is not in the cloud) and several Microsoft cloud services, including Power BI, PowerApps, Microsoft Flow, Azure Analysis Services, and Logic Apps. By using a gateway, organizations can keep databases and other data sources on their on-premises networks, yet securely use that on-premises data in cloud services.
Types of gateways
There are two different types of gateways, each for a different scenario:
On-premises data gateway allows multiple users to connect to multiple on-premises data sources. You can use an on-premises data gateway with all supported services, with a single gateway installation. This gateway is well-suited to complex scenarios with multiple people accessing multiple data sources.
On-premises data gateway (personal mode) allows one user to connect to sources, and can’t be shared with others. An on-premises data gateway (personal mode) can be used only with Power BI. This gateway is well-suited to scenarios where you’re the only person who creates reports, and you don't need to share any data sources with others.