An on-premises data gateway allows Power Apps and Power Automate to reach back to on-premises resources to support hybrid integration scenarios.

On-premises data gateways allow for transferring data quickly and securely between a Power Platform dataflow and a data source that isn't in the cloud, such as an on-premises SQL Server or Oracle database.

You can submit a request for a Power Platform on-premises data gateway to the Microsoft 365 administrators and Office of Information Security for review via the form on the Cloud Services and Applications website: Power Platform On-premises Data Gateway Request.