# Change a Trusted Amount
source: https://developer.mastercard.com/mastercard-processing-dispute/documentation/sandbox-testing/change-trusted-amount/index.md

## Test case -- Success {#test-case--success}

This test case describes updating the disputed amount for a specified case stored in the CMS.

**Sample request**

`POST /cases/80001/trusted-amounts`

```JSON
{
  "commentText": "lastContactDate=2020-06-10",
  "currency": "EUR",
  "newAmount": 10,
  "reasonCode": "4837"
}
```

**Sample response**

`200`

```JSON
{
  "caseActionId": 102055260,
  "caseActionDescription": "Change Trusted Amount",
  "caseNumber": "D80001"
}
```