End of support notice: On May 20, 2026, Amazon will end support for Amazon IoT Events. After May 20, 2026, you will no longer be able to access the Amazon IoT Events console or Amazon IoT Events resources. For more information, see [Amazon IoT Events end of support](https://docs.amazonaws.cn/iotevents/latest/developerguide/iotevents-end-of-support.html).

# Supported actions to receive data and trigger actions in Amazon IoT Events
<a name="iotevents-supported-actions"></a>

Amazon IoT Events can trigger actions when it detects a specified event or transition event. You can define built-in actions to use a timer or set a variable, or send data to other Amazon resources. Learn how to configure and customize these actions to create automated responses to your various IoT events.

**Note**  
When you define an action in a detector model, you can use expressions for parameters that are string data type. For more information, see [Expressions](https://docs.amazonaws.cn/iotevents/latest/developerguide/iotevents-expressions.html).

<a name="build-in-actions-intro"></a>Amazon IoT Events supports the following actions that let you use a timer or set a variable:<a name="build-in-actions"></a>
+ [`setTimer`](built-in-actions.md#iotevents-set-timer) to create a timer.
+ [`resetTimer`](built-in-actions.md#iotevents-reset-timer) to reset the timer.
+ [`clearTimer`](built-in-actions.md#iotevents-clear-timer) to delete the timer.
+ [`setVariable`](built-in-actions.md#iotevents-set-variable) to create a variable.

<a name="work-with-aws-services-intro"></a>Amazon IoT Events supports the following actions that let you work with Amazon services: <a name="work-with-aws-services"></a>
+ [`iotTopicPublish`](iotevents-other-aws-services.md#iotevents-iotcore) to publish a message on an MQTT topic.
+ [`iotEvents`](iotevents-other-aws-services.md#iotevents-iteinput) to send data to Amazon IoT Events as an input value.
+ [`iotSiteWise`](iotevents-other-aws-services.md#iotevents-iotsitewise) to send data to an asset property in Amazon IoT SiteWise.
+ [`dynamoDB`](iotevents-other-aws-services.md#iotevents-dynamodb) to send data to an Amazon DynamoDB table.
+ [`dynamoDBv2`](iotevents-other-aws-services.md#iotevents-dynamodbv2) to send data to an Amazon DynamoDB table.
+ [`firehose`](iotevents-other-aws-services.md#iotevents-firehose) to send data to an Amazon Data Firehose stream.
+ [`lambda`](iotevents-other-aws-services.md#iotevents-lambda) to invoke an Amazon Lambda function.
+ [`sns`](iotevents-other-aws-services.md#iotevents-sns) to send data as a push notification.
+ [`sqs`](iotevents-other-aws-services.md#iotevents-sqs) to send data to an Amazon SQS queue.