diff --git a/daprdocs/content/en/developing-applications/building-blocks/pubsub/howto-publish-subscribe.md b/daprdocs/content/en/developing-applications/building-blocks/pubsub/howto-publish-subscribe.md
index 30acc6604..7cdd7f9b6 100644
--- a/daprdocs/content/en/developing-applications/building-blocks/pubsub/howto-publish-subscribe.md
+++ b/daprdocs/content/en/developing-applications/building-blocks/pubsub/howto-publish-subscribe.md
@@ -416,6 +416,10 @@ app.post('/dsstatus', (req, res) => {
 
 {{< /tabs >}}
 
+{{% alert title="Note on message redelivery" color="primary" %}}
+Some pubsub components (e.g. Redis) will redeliver a message if a response is not sent back within a specified time window. Make sure to configure metadata such as `processingTimeout` to customize this behavior. For more information refer to the respective [component references]({{< ref supported-pubsub >}}).
+{{% /alert %}}
+
 ## (Optional) Step 5: Publishing a topic with code
 
 {{< tabs Node PHP>}}