---
title: "PUT /2019-09-30/functions/{FunctionName}/provisioned-concurrency#Qualifier"
method: PUT
path: "/2019-09-30/functions/{FunctionName}/provisioned-concurrency#Qualifier"
---

# PUT /2019-09-30/functions/{FunctionName}/provisioned-concurrency#Qualifier

`PUT /2019-09-30/functions/{FunctionName}/provisioned-concurrency#Qualifier`

Adds a provisioned concurrency configuration to a function's alias or version.

## Path parameters

- `FunctionName` string, required

## Query parameters

- `Qualifier` string, required

## Request body

- object
  - `ProvisionedConcurrentExecutions` integer, required — The amount of provisioned concurrency to allocate for the version or alias.

## Response `202`

Success

- PutProvisionedConcurrencyConfigResponse
  - `RequestedProvisionedConcurrentExecutions` integer — The amount of provisioned concurrency requested.
  - `AvailableProvisionedConcurrentExecutions` integer — The amount of provisioned concurrency available.
  - `AllocatedProvisionedConcurrentExecutions` integer — The amount of provisioned concurrency allocated. When a weighted alias is used during linear and canary deployments, this value fluctuates depending on the amount of concurrency that is provisioned for the function versions.
  - `Status` 'IN_PROGRESS' | 'READY' | 'FAILED' — The status of the allocation process.
  - `StatusReason` string — For failed allocations, the reason that provisioned concurrency could not be allocated.
  - `LastModified` string — The date and time that a user last updated the configuration, in <a href="https://www.iso.org/iso-8601-date-and-time-format.html">ISO 8601 format</a>.

## Other responses

- `480` — InvalidParameterValueException
- `481` — ResourceNotFoundException
- `482` — ResourceConflictException
- `483` — TooManyRequestsException
- `484` — 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)