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You are a developer for Acme Inc. Your application uses a Service Bus Queue to receive messages from an outside app, and you have a number of applications processing those messages. You have recently been told that the business is seeing a problem with some messages in an unusual circumstance being processed twice. When you debug the problem, it's a message that was successfully processed by the job, but then the program fails before the queue could be updated to delete the message. Your boss wants you to fix the problem so that it might be better if a message was missed than if it was processed twice. What do you do to ensure messages do not get processed twice, even if sometimes they don't get processed?