Update create-real-time-alert.md

Author: kimsauce

i18n/ja/alerts/alerts/scheduled-searches/create-real-time-alert.md

@@ -9,6 +9,10 @@ Real-time alerts are scheduled searches that run nearly continuously. That means
 
 When an alert condition is satisfied Sumo Logic triggers the selected alert type. Sumo Logic examines ingested data in a rolling window using the Time Range you define. Any time a new result is found, another email is sent.
 
+:::note
+Only use real time schedules when you know your data is ingested within a few minutes of its creation. The [receipt time](../../search/get-started-with-search/build-search/use-receipt-time.md) should be within a few minutes of your log's [message time](/docs/search/get-started-with-search/search-basics/built-in-metadata). See how to [troubleshoot timestamp discrepancies](/docs/send-data/collector-faq#troubleshooting-time-discrepancies).
+:::
+
 Real-time alerts are not duplicated, which means that if a specific raw log message has triggered an alert once already, that same log message will not trigger an alert a second time.
 
 For example, if **Message X** caused an alert to be sent at **Time T**, and Sumo Logic detects **Message X** again at **Time T+1**, Sumo Logic does not send a second alert at **Time T+1**. But if Sumo Logic detects **Message Y** at **Time T+1**, a new alert is sent, because the root cause is different.