A marketplace app must react to partner-sent order.created events, fan out those events to internal services, and run a long-running orchestration that calls multiple SaaS APIs, waits for human approval, and finally sends a command to a warehouse system. You want minimal custom code and loose coupling. Which two Azure services should you use together?

Azure Event Grid is ideal for reacting to partner-sent order.created events and fanning them out to internal services. It's a highly scalable, fully managed event routing service that supports various sources and handlers, enabling loose coupling. Azure Logic Apps is perfect for the long-running orchestration. It offers a visual designer for building workflows that integrate with numerous SaaS APIs, handle human approvals, and send commands to systems like a warehouse, all with minimal custom code. Azure Functions (Durable Functions) could handle the orchestration but requires more custom code than Logic Apps. Azure Service Bus is a messaging service, not an event routing or orchestration engine. Azure Event Hubs is for high-throughput data ingestion, not event routing or workflow orchestration.