---
title: "Run Lambda Function"
slug: "run-lamba-function"
updated: 2025-08-19T19:57:16Z
published: 2025-08-19T19:57:16Z
canonical: "documentation.decisions.com/run-lamba-function"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Run Lambda Function

| Step Details |
| --- |
| **Introduced in Version** | 8.0.0 |
| **Last Modified in Version** | 9.0.0 |
| **Location** | Integration > Amazon AWS > Lambda |

The **Run Lambda Function** step is used to trigger the execution of a specific Lambda Function.

### Prerequisites

- This step requires the [Amazon AWS Module](https://documentation.decisions.com/docs/aws) to be [installed](https://documentation.decisions.com/docs/installing-modules-decisions) before it will be available in the toolbox, and an active [AWS account](https://signin.aws.amazon.com/signin?redirect_uri=https%3A%2F%2Fconsole.aws.amazon.com%2Fconsole%2Fhome%3FhashArgs%3D%2523%26isauthcode%3Dtrue%26nc2%3Dh_ct%26src%3Dheader-signin%26state%3DhashArgsFromTB_eu-north-1_c1412528899e4833&client_id=arn%3Aaws%3Asignin%3A%3A%3Aconsole%2Fcanvas&forceMobileApp=0&code_challenge=HQku5BPrRUboP5p1wGr4Ai_nBIQNSqsR2eHJNCBfxhQ&code_challenge_method=SHA-256). The [Amazon WebServices Settings](https://documentation.decisions.com/docs/setting-up-amazon-webservices-integration) must also be configured.
- A dependency must be created after installing the module in order for the the steps to be properly used.

---

## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| Allow Use Default AWSCreds | Toggle permitting the use of default AWS account credentials. | Boolean |
| Function Name | Name of the Lambda function to name. | String |
| Region | AWS Region associated with the designated Lambda function. | AmazonAWSRegion |
| Timeout | Time frame it takes for function to stop working. | TimeSpan |

#### Outputs

| Property | Description | Data Type |
| --- | --- | --- |
| Substring1_Output | The part of the string that was extracted. | String |

![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/2025-08-13_15h30_38.png)

---

## Common Errors

### Function Not Found

If the function that was inputted does not exist or was spelled incorrectly, thestep will cause an error. To correct this, ensure the Function Name input is properly spelled and exists.

#### Exception Message:

```csharp
DecisionsFramework.Design.Flow.ErrorRunningFlowStep: Error running step Run Lambda Function 1[RunLambdaFunction] in flow [Step Library Flow]: Exception invoking method RunLambdaFunction on class LambdaSteps
 ---> DecisionsFramework.LoggedException: Exception invoking method RunLambdaFunction on class LambdaSteps
 ---> Amazon.Lambda.Model.ResourceNotFoundException: Function not found: arn:aws:lambda:us-east-1:230575086277:function:TestFunction:$LATEST
 ---> Amazon.Runtime.Internal.HttpErrorResponseException: Exception of type 'Amazon.Runtime.Internal.HttpErrorResponseException' was thrown. at Amazon.Runtime.HttpWebRequestMessage.ProcessHttpResponseMessage(HttpResponseMessage responseMessage)
 at Amazon.Runtime.HttpWebRequestMessage.GetResponseAsync(CancellationToken cancellationToken)
 at Amazon.Runtime.Internal.HttpHandler`1.InvokeAsync[T](IExecutionContext executionContext)
 at Amazon.Runtime.Internal.Unmarshaller.InvokeAsync[T](IExecutionContext executionContext)
 at Amazon.Runtime.Internal.ErrorHandler.InvokeAsync[T](IExecutionContext executionContext)
   --- End of inner exception stack trace ---
```

---

## Step Changes

|  | Version | Release Date | Developer Task |
| --- | --- | --- | --- |
| Timeout property added. | [9.6](https://documentation.decisions.com/v99/docs/version-96x-release-notes) | January 2025 | [DT-042821] |

---

Related Information

Related Articles:

[Lambda](https://documentation.decisions.com/docs/lambda#overview)