Updated the documentation.

Author: Michael Khmelnitsky

doc_source/sns-document-history.md

@@ -5,7 +5,6 @@ The following table lists changes to the *Amazon Simple Notification Service Dev
 
 | Date | Documentation Update | 
 | --- | --- | 
-| October 18, 2019 | Clarified the information regarding CloudWatch in the [Enable Compatibility between Event Sources from AWS Services and Encrypted Topics](sns-server-side-encryption.md#compatibility-with-aws-services) section\. | 
 | October 8, 2019 |  [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/sns/latest/dg/sns-document-history.html)  | 
 | October 3, 2019 | Revised the information in the following sections: [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/sns/latest/dg/sns-document-history.html) | 
 | September 23, 2019 | Revised the information in the following sections: [\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/sns/latest/dg/sns-document-history.html) | 

doc_source/sns-server-side-encryption.md

@@ -141,6 +141,9 @@ The publisher must have the `kms:GenerateDataKey` and `kms:Decrypt` permissions
 
 Several AWS services publish events to Amazon SNS topics\. To allow these event sources to work with encrypted topics, you must perform the following steps\.
 
+**Note**  
+Currently, CloudWatch alarms don't work with Amazon SNS encrypted topics\. For information about publishing alarms to unencrypted topics, see [Using Amazon CloudWatch Alarms](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/) in the *Amazon CloudWatch User Guide*\.
+
 1. [Create a customer master key \(CMK\)\.](https://docs.aws.amazon.com/kms/latest/developerguide/create-keys.html#create-keys-console)
 
 1. To allow the AWS service feature to have the `kms:GenerateDataKey*` and `kms:Decrypt` permissions, add the following statement to the policy of the CMK using the correct service principal\.

doc_source/sns-user-notifications-process-overview.md

@@ -10,4 +10,4 @@
 
 1. Use the `EndpointArn` to publish a message to an app on a mobile device\. For more information, see [Send a Direct Message to a Mobile Device](mobile-push-send-directmobile.md) and the [Publish](https://docs.aws.amazon.com/sns/latest/api/API_Publish.html) API in the Amazon Simple Notification Service API Reference\.
 
-1. Using the information from the mobile platforms, [publish a message to a mobile device](mobile-push-send.md)\.
+1. Using the information from the mobile platforms, [publish a message to a mobile device](mobile-push-send.md)\.