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A checkout API synchronously calls inventory, payment, notification, and analytics services. One slow dependency now causes customer timeouts. Each downstream capability must process accepted orders independently and survive short outages. Which design is best?

Increase the checkout timeout and retry every dependency inline.Send every order to one SQS queue shared by all four consumers.Store the order, publish OrderCreated reliably, and route it to a separate SQS queue for each independent consumer.Write the order directly to the analytics warehouse first.