---
title: "GET /2019-09-30/functions/{FunctionName}/concurrency"
method: GET
path: "/2019-09-30/functions/{FunctionName}/concurrency"
---

# GET /2019-09-30/functions/{FunctionName}/concurrency

`GET /2019-09-30/functions/{FunctionName}/concurrency`

Returns details about the reserved concurrency configuration for a function. To set a concurrency limit for a function, use <a>PutFunctionConcurrency</a>.

## Path parameters

- `FunctionName` string, required

## Response `200`

Success

- GetFunctionConcurrencyResponse
  - `ReservedConcurrentExecutions` integer — The number of simultaneous executions that are reserved for the function.

## Other responses

- `480` — InvalidParameterValueException
- `481` — ResourceNotFoundException
- `482` — TooManyRequestsException
- `483` — ServiceException

---

[API](https://skmtc.net/aws/apis/lambda.md) · [All operations](https://skmtc.net/aws/apis/lambda/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aws/lambda/versions/2d9fde023ce9/schema)