# GetFunctionScalingConfig
<a name="API_GetFunctionScalingConfig"></a>

Retrieves the scaling configuration for a Lambda Managed Instances function.

## Request Syntax
<a name="API_GetFunctionScalingConfig_RequestSyntax"></a>

```
GET /2025-11-30/functions/FunctionName/function-scaling-config?Qualifier=Qualifier HTTP/1.1
```

## URI Request Parameters
<a name="API_GetFunctionScalingConfig_RequestParameters"></a>

The request uses the following URI parameters.

 ** [FunctionName](#API_GetFunctionScalingConfig_RequestSyntax) **   <a name="lambda-GetFunctionScalingConfig-request-uri-FunctionName"></a>
The name or ARN of the Lambda function.  
Length Constraints: Minimum length of 1. Maximum length of 140.  
Pattern: `(arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}((-gov)|(-iso([a-z]?)))?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)`   
Required: Yes

 ** [Qualifier](#API_GetFunctionScalingConfig_RequestSyntax) **   <a name="lambda-GetFunctionScalingConfig-request-uri-Qualifier"></a>
Specify a version or alias to get the scaling configuration for a published version of the function.  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `(\$LATEST\.PUBLISHED|[0-9]+)`   
Required: Yes

## Request Body
<a name="API_GetFunctionScalingConfig_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_GetFunctionScalingConfig_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "AppliedFunctionScalingConfig": { 
      "MaxExecutionEnvironments": number,
      "MinExecutionEnvironments": number
   },
   "FunctionArn": "string",
   "RequestedFunctionScalingConfig": { 
      "MaxExecutionEnvironments": number,
      "MinExecutionEnvironments": number
   }
}
```

## Response Elements
<a name="API_GetFunctionScalingConfig_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [AppliedFunctionScalingConfig](#API_GetFunctionScalingConfig_ResponseSyntax) **   <a name="lambda-GetFunctionScalingConfig-response-AppliedFunctionScalingConfig"></a>
The scaling configuration that is currently applied to the function. This represents the actual scaling settings in effect.  
Type: [FunctionScalingConfig](API_FunctionScalingConfig.md) object

 ** [FunctionArn](#API_GetFunctionScalingConfig_ResponseSyntax) **   <a name="lambda-GetFunctionScalingConfig-response-FunctionArn"></a>
The Amazon Resource Name (ARN) of the function.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 10000.  
Pattern: `arn:(aws[a-zA-Z-]*)?:lambda:[a-z]{2}((-gov)|(-iso([a-z]?)))?-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_]+(:(\$LATEST|[a-zA-Z0-9-_]+))?` 

 ** [RequestedFunctionScalingConfig](#API_GetFunctionScalingConfig_ResponseSyntax) **   <a name="lambda-GetFunctionScalingConfig-response-RequestedFunctionScalingConfig"></a>
The scaling configuration that was requested for the function.  
Type: [FunctionScalingConfig](API_FunctionScalingConfig.md) object

## Errors
<a name="API_GetFunctionScalingConfig_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** InvalidParameterValueException **   
One of the parameters in the request is not valid.    
 ** message **   
The exception message.  
 ** Type **   
The exception type.
HTTP Status Code: 400

 ** ResourceNotFoundException **   
The resource specified in the request does not exist.  
HTTP Status Code: 404

 ** ServiceException **   
The AWS Lambda service encountered an internal error.  
HTTP Status Code: 500

 ** TooManyRequestsException **   
The request throughput limit was exceeded. For more information, see [Lambda quotas](https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-limits.html#api-requests).    
 ** retryAfterSeconds **   
The number of seconds the caller should wait before retrying.
HTTP Status Code: 429

## See Also
<a name="API_GetFunctionScalingConfig_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/lambda-2015-03-31/GetFunctionScalingConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/lambda-2015-03-31/GetFunctionScalingConfig)