# BillValidation Response Endpoint

<mark style="color:blue;">**Biller server to Biller Protocol**</mark>

**Request:** POST /BillValidationResponse

<mark style="color:blue;">**Request ParametersLE**</mark>

**The various parameters are explained below:**

| Parent Property/Element                    | Property/Element Name | Mandatory | Data Type                               | Description                                                                                                                                                                                                    |
| ------------------------------------------ | --------------------- | --------- | --------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **\[ROOT]** (No parent property / element) | refId                 | M         | String                                  | Unique identification assigned by the initiating BBPOU to unambiguously identify the transaction which is passed on, unchanged, throughout the entire end-to-end chain, binding the Fetch and Payment messages |
|                                            | errorCode             | C         | String                                  | <p>Carries the compliance code indicating the reason for a failed</p><p>transaction – not required for a successful transaction</p>                                                                            |
|                                            | errorDescription      | C         | String                                  | <p>Description of the compliance code – not required for a</p><p>successful transaction</p>                                                                                                                    |
|                                            | status                | M         | String Min Length – 1, Max Length – 100 | Status of given request                                                                                                                                                                                        |
|                                            | additionalInfo        | M         | Array                                   | Additional information parameters sent by the Biller supporting fetch is copied in the payment request.                                                                                                        |
|                                            | tenantId              | M         | String Fixed length - 4                 | OU ID of request originating BOU                                                                                                                                                                               |

<mark style="color:blue;">**Expected Acknowledgement Parameters**</mark>

**The various parameters are explained below:**

| Parent Property/Element                    | Property/Element Name | Mandatory | Data Type                               | Description                 |
| ------------------------------------------ | --------------------- | --------- | --------------------------------------- | --------------------------- |
| **\[ROOT]** (No parent property / element) | reason                | M         | String Min Length – 1, Max Length – 100 | Reason of the Status        |
|                                            | code                  | M         | String Fixed Length 3                   | Response code for a request |
|                                            | status                | M         | String Min Length – 1, Max Length – 100 | Status of given request     |

<mark style="color:blue;">**Json Formatted ResponseExample**</mark>

```json
    
    {
    "refId":"String", "errorCode": "String", "errorDescription": "String", "status": "String", "additionalInfo": [
    {
    "name": "String",
    "value": "String"
    }
    ],
    "tenantId" : "String"
    }
```

<mark style="color:blue;">**Json Formatted Response Example**</mark>

```json

    {
    "reason":"String",
    "code":"Integer", "status":"String"
    }
```


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