# Bad Request
source: https://developer.mastercard.com/mastercard-developers-api/documentation/errors/bad-request/index.md

Error caused due to an invalid request.

### Solution {#solution}

This error indicates the request was unacceptable, often due to an invalid parameter. For example, it could be due to an incorrect `service_Id` or `project_Id` in your request.

### API Error Response {#api-error-response}

**HTTP code 400**

#### Invalid serviceId {#invalid-serviceid}

```JSON
{
  "Errors": {
    "Error": [
      {
        "Description": "Bad request",
        "Details": "Invalid value passed for property service_id",
        "ReasonCode": "BAD_REQUEST",
        "Recoverable": false,
        "Source": "DEVELOPERS_API"
      }
    ]
  }
}
```

#### Invalid projectId {#invalid-projectid}

```JSON
{
  "Errors": {
    "Error": [
      {
        "Description": "Bad request",
        "Details": "Invalid value passed for property project_id",
        "ReasonCode": "BAD_REQUEST",
        "Recoverable": false,
        "Source": "DEVELOPERS_API"
      }
    ]
  }
}
```

[Back to Errors List](https://developer.mastercard.com/mastercard-developers-api/documentation/code-and-formats/index.md#list-of-common-api-errors)​​