Explanation
When a company creates a canvas app that requires near real-time data from an accounting system that resides in a customer's data center, one solution that can be implemented is to create an On-premises data gateway.
An On-premises data gateway is a service that allows Power Apps to connect to and access data sources that are located on-premises, such as the accounting system in the customer's data center. The gateway acts as a bridge between the cloud-based Power Apps and the on-premises data sources, enabling real-time data transfer and integration.
References:
https://docs.microsoft.com/en-us/power-platform/admin/gateway-reference
https://docs.microsoft.com/en-us/power-platform/admin/gateway-onprem
https://docs.microsoft.com/en-us/power-platform/admin/real-time-data-integration