# Set Classifier
source: https://developer.mastercard.com/mastercard-processing-core/documentation/sandbox-testing/classifiers-and-parameters-management/set-classifier/index.md

## Test case -- Success -- Set Classifier for a Client {#test-case--success--set-classifier-for-a-client}

This test case describes setting a classifier for a specified client stored in the CMS. Refer to [Classifiers](https://developer.mastercard.com/mastercard-processing-core/documentation/guides/card-management-system/index.md#classifiers) for more information about Classifiers.

For this test case, use the following information in the request:

|  Path parameter   |  Available value   |
|-------------------|--------------------|
| `classifier_code` | TEST_CLASSIFIER_01 |
|                   | TEST_CLASSIFIER_02 |

**Sample request**

`PUT clients/40000/classifiers/TEST_CLASSIFIER_01`

```JSON
{
  "classifierValue": "VALUE_1A",
  "endDate": "2031-06-25",
  "startDate": "2031-06-25"
}
```

**Sample response**

`204`

## Test case -- Success -- Set Classifier for a Contract {#test-case--success--set-classifier-for-a-contract}

This test case describes setting a classifier for a specified contract (account contract or card contract) stored in the CMS. Refer to [Classifiers](https://developer.mastercard.com/mastercard-processing-core/documentation/guides/card-management-system/index.md#classifiers) for more information about Classifiers.

For this test case, use the following information in the request:

|  Path parameter   |  Available value   |
|-------------------|--------------------|
| `classifier_code` | TEST_CLASSIFIER_01 |
|                   | TEST_CLASSIFIER_02 |

**Sample request**

`PUT /contracts/70001/classifiers/TEST_CLASSIFIER_01`

```JSON
{
  "classifierValue": "VALUE_1A",
  "endDate": "2031-06-25",
  "startDate": "2031-06-25"
}
```

**Sample response**

`204`

## Test case -- Fail -- Invalid Contract's classifier code {#test-case--fail--invalid-contracts-classifier-code}

This test case describes an attempt to set a classifier for a specified contract (account contract or card contract) stored in the CMS by sending an incorrect classifier code. Refer to [Classifiers](https://developer.mastercard.com/mastercard-processing-core/documentation/guides/card-management-system/index.md#classifiers) for more information about Classifiers.

For this test case, use the following information in the request:

|  Path parameter   | Available value |
|-------------------|-----------------|
| `classifier_code` | INVALID         |

**Sample request**

`PUT /contracts/70001/classifiers/INVALID`

```JSON
{
  "classifierValue": "YES",
  "endDate": "2031-06-25",
  "startDate": "2031-06-25"
}
```

**Sample response**

`404`

```JSON
{
  "Errors": {
    "Error": [
      {
        "Source": "MASTERCARD PROCESSING",
        "ReasonCode": "CLASSIFIER_CODE_DOES_NOT_EXIST",
        "Description": "Classifier with code INVALID not found.",
        "Recoverable": false
      }
    ]
  }
}
```

## Test case -- Fail -- Invalid Contract's classifier value {#test-case--fail--invalid-contracts-classifier-value}

This test case describes an attempt to set a classifier for a specified contract (account contract or card contract) stored in the CMS by sending an incorrect classifier value. Refer to [Classifiers](https://developer.mastercard.com/mastercard-processing-core/documentation/guides/card-management-system/index.md#classifiers) for more information about Classifiers.

For this test case, use the following information in the request:

|  Path parameter   |  Available value   |
|-------------------|--------------------|
| `classifier_code` | TEST_CLASSIFIER_01 |
|                   | TEST_CLASSIFIER_02 |

|       Field       | Available value |
|-------------------|-----------------|
| `classifierValue` | INVALID         |

**Sample request**

`PUT /contracts/70001/classifiers/TEST_CLASSIFIER_01`

```JSON
{
  "classifierValue" : "INVALID",
  "endDate" : "2031-06-25",
  "startDate" : "2031-06-25"
}
```

**Sample response**

`404`

```JSON
{
  "Errors": {
    "Error": [
      {
        "Source": "MASTERCARD PROCESSING",
        "ReasonCode": "INVALID_CLASSIFIER_VALUE",
        "Description": "Invalid value INVALID for classifier with code TEST_CLASSIFIER_01.",
        "Recoverable": false
      }
    ]
  }
}
```