What is Azure Service Bus message TTL and how does it impact system design?

Updated Apr 23, 2026

Short answer

TTL defines how long a message stays in the queue before expiring.

Deep explanation

Each message in Service Bus can have a Time-To-Live. If the message is not consumed within this time, it expires and is either deleted or moved to DLQ. TTL helps prevent stale data processing and ensures system relevance.

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