---
title: "POST /#Action=CreateCustomDBEngineVersion"
method: POST
path: "/#Action=CreateCustomDBEngineVersion"
---

# POST /#Action=CreateCustomDBEngineVersion

`POST /#Action=CreateCustomDBEngineVersion`

Creates a custom DB engine version (CEV).

## Query parameters

- `Action` 'CreateCustomDBEngineVersion', required
- `Version` '2014-10-31', required

## Response `200`

Success

## Other responses

- `480` — CustomDBEngineVersionAlreadyExistsFault
- `481` — CustomDBEngineVersionQuotaExceededFault
- `482` — Ec2ImagePropertiesNotSupportedFault
- `483` — KMSKeyNotAccessibleFault
- `484` — CreateCustomDBEngineVersionFault

---

[API](https://skmtc.net/aws/apis/rds.md) · [All operations](https://skmtc.net/aws/apis/rds/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/aws/rds/versions/e6b3ad7df19b/schema)