Huanli-Meng commented on a change in pull request #9681:
URL: https://github.com/apache/pulsar/pull/9681#discussion_r581693741
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File path: site2/docs/concepts-messaging.md
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@@ -128,6 +128,8 @@ In the exclusive and failover subscription modes, consumers
only negatively ackn
In the shared and Key_Shared subscription modes, you can negatively
acknowledge messages individually.
+Be aware that doing negative ack on ordered subscription type like Exclusive,
Failover and Key_Share can cause failed messages arrive consumer out of
original order.
Review comment:
```suggestion
Be aware that negative acknowledgment on ordered subscription types, such as
Exclusive, Failover, and Key_Share, can cause failed messages to arrive
consumers out of the original order.
```
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