-When you need to send correlated messages in a specific order, you can follow the [*sequential convoy* pattern](https://docs.microsoft.com/azure/architecture/patterns/sequential-convoy) when using [Azure Logic Apps](../logic-apps/logic-apps-overview.md) by using the [Azure Service Bus connector](../connectors/connectors-create-api-servicebus.md). Correlated messages have a property that defines the relationship between those messages, such as the ID for the [session](../service-bus-messaging/message-sessions.md) in Service Bus. For example, suppose that you have 10 messages for a session named "Session 1", and you have 5 messages for a session named "Session 2" that are all sent to the same [Service Bus queue](../service-bus-messaging/service-bus-queues-topics-subscriptions.md). You can create a logic app that processes messages from the queue so that all messages from "Session 1" are handled by a single trigger run and all messages from "Session 2" are handled by the next trigger run.
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