---
title: "GET /#Action=DescribeValidDBInstanceModifications"
method: GET
path: "/#Action=DescribeValidDBInstanceModifications"
---

# GET /#Action=DescribeValidDBInstanceModifications

`GET /#Action=DescribeValidDBInstanceModifications`

You can call `DescribeValidDBInstanceModifications` to learn what modifications you can make to your DB instance. You can use this information when you call `ModifyDBInstance`.

This command doesn't apply to RDS Custom.

## Query parameters

- `DBInstanceIdentifier` string, required
- `Action` 'DescribeValidDBInstanceModifications', required
- `Version` '2014-10-31', required

## Response `200`

Success

## Other responses

- `480` — DBInstanceNotFoundFault
- `481` — InvalidDBInstanceStateFault

---

[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)