# Update User
source: https://developer.mastercard.com/priceless-planet-carbon-tracker/documentation/testing/testcase/test_case_update_user/index.md

The **Update User** service allows the Issuer to update enrolled user information in the Carbon Calculator Experience API.

## Pre-requisites {#pre-requisites}

Refer to the [Update User](https://developer.mastercard.com/priceless-planet-carbon-tracker/documentation/use-cases/update_user/index.md) use case details.


API Reference: `GET /issuers/users/{userid}`

<br />

## Test Cases {#test-cases}

### Test Case: Success - Update User Details {#test-case-success---update-user-details}

##### Request {#request}

```json
{
  "name": {
    "firstName": "Johnn",
    "lastName": "Dooe"
  },
  "billingAddress": {
      "countryCode": "USA",
      "locality": "Rly Station",
      "postalCode": "11746",
      "state": "Huntington",
      "city": "Brooklyn",
      "line1": "83 Mayfair Street",
      "line2": "Main Road",
      "line3": "Snake Hill Ave",
      "type": "work"
    },
  "locale": "en-US"
}
```

##### Response {#response}

```json
{
    "userid": "c8b38606-12b2-43c6-a641-be8eb0ab9dec",
    "cardNumberLastFourDigits": "3150",
    "status": "ACTIVE"
}
```

### Test Case: Fail - Invalid lastName {#test-case-fail---invalid-lastname}

##### Request {#request-1}

```json


{
  "name": {
    "firstName": "Johnn",
    "lastName": "444555454"
  },
  "billingAddress": {
      "countryCode": "USA",
      "locality": "Rly Station",
      "postalCode": "11746",
      "state": "Huntington",
      "city": "Brooklyn",
      "line1": "83 Mayfair Street",
      "line2": "Main Road",
      "line3": "Snake Hill Ave",
      "type": "work"
    },
  "locale": "en-US"
}
```

##### Response {#response-1}

```json
{
  "Errors": {
    "Error": [
      {
        "Source": "CARBON CALCULATOR EXPERIENCE",
        "ReasonCode": "INVALID_REQUEST_PARAMETER",
        "Description": "One of the request parameters is invalid, try again with correct request.",
        "Recoverable": false,
        "Details": "Username must only contain alphanumeric (A-Z, a-z, 0-9) and the characters ('), (,) and (')"
      }
    ]
  }
}
```

### Test Case: Fail - Locale invalid format {#test-case-fail---locale-invalid-format}

##### Request {#request-2}

```json
{
  "name": {
    "firstName": "Johnn",
    "lastName": "Dooe"
  },
  "billingAddress": {
     "countryCode": "USA",
     "locality": "Rly Station",
     "postalCode": "11746",
     "state": "Huntington",
     "city": "Brooklyn",
     "line1": "83 Mayfair Street",
     "line2": "Main Road",
     "line3": "Snake Hill Ave",
     "type": "work"
    },
  "locale": "455666"
}
```

##### Response {#response-2}

```json
{
  "Errors": {
    "Error": [
      {
        "Source": "CARBON CALCULATOR EXPERIENCE",
        "ReasonCode": "INVALID_REQUEST_PARAMETER",
        "Description": "One of the request parameters is invalid, try again with correct request.",
        "Recoverable": false,
        "Details": "Locale must be in the format: \"ab-YZ\""
      }
    ]
  }
}
```

### Test Case: Fail - The issuer disabled the donation flow at the time of onboarding. {#test-case-fail---the-issuer-disabled-the-donation-flow-at-the-time-of-onboarding}

##### Request {#request-3}

```json
{
  "name": {
    "firstName": "Johnn",
    "lastName": "Dooe"
  },
  "billingAddress": {
     "countryCode": "USA",
     "locality": "Rly Station",
     "postalCode": "11746",
     "state": "Huntington",
     "city": "Brooklyn",
     "line1": "83 Mayfair Street",
     "line2": "Main Road",
     "line3": "Snake Hill Ave",
     "type": "work"
    },
  "locale": "455666"
}
```

##### Response {#response-3}

```json
{
  "Errors": {
    "Error": [
      {
        "Source": "CARBON CALCULATOR EXPERIENCE",
        "ReasonCode": "UPDATE_USER_NOT_ACCESSIBLE",
        "Description": "You do not have permission to access this API. The Donate feature for your bank is disabled.",
        "Recoverable": false,
        "Details": "You do not have permission to access this API. The Donate feature for your bank is disabled."
      }
    ]
  }
}
```