Power Pages payment flow architecture integrates Microsoft Dataverse, custom APIs, and payment gateways through a layered stack spanning presentation, application, and data tiers. User requests flow from Power Pages Renderer through Gateway SDK and Dataverse Custom API to a Payment Plugin, which orchestrates PaymentService and Gateway Adapter components before routing to the payment Gateway. The architecture demonstrates secure separation of concerns with Dataverse DB as the persistent store and bidirectional communication between the renderer and gateway for real-time payment status. This pattern solves PCI compliance and payment processing complexity for low-code portal applications. Fork and customize this diagram on Diagrams.so to match your payment provider and Dataverse schema.