> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mangopay.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 205001

> <small>&#8249; [All error codes](/errors/codes#paypal)</small>

<table>
  <tbody>
    <tr>
      <th class="header"><strong>Error message</strong></th>
      <td class="table-content">Data validation error</td>
    </tr>

    <tr>
      <th class="header"><strong>Description</strong></th>
      <td class="table-content">One of the required parameters may be missing or invalid.</td>
    </tr>

    <tr>
      <th class="header"><strong>Categories</strong></th>

      <td class="table-content">
        <div class="pill pill-gray">PayPal</div>\
        <div class="pill pill-gray">Pay-in</div>
      </td>
    </tr>
  </tbody>
</table>

#### Causes

This error occurs when some required parameters are either missing or invalid.

On <a href="/api-reference/recurring-card-payins/recurring-payin-object">recurring card pay-ins</a>, this error may also be caused when the 10th pay-in is attempted against the same registration object. One registration object can only be used for a maximum of 99 pay-ins, both CIT and MIT included.

#### What to do

On recurring card pay-ins, you need to restart the recurrence by creating a new registration object. This will require the user to authenticate with an initial CIT. See the <a href="/guides/payment-methods/card/recurring/how-to">how-to guide</a> for details on setting up a new recurring flow.

#### Example

In the example below, the error was returned upon making a recurring pay-in.

```json API Response theme={null}
{
    "Id":"3299814440",
    "Tag":"Custom meta",
    "CreationDate":1676828707,
    "AuthorId":"850474422",
    "CreditedUserId":"850444822",
    "DebitedFunds":{
        "Currency":"EUR",
        "Amount":1200
    },
    "CreditedFunds":{
        "Currency":"EUR",
        "Amount":1200
    },
    "Fees":{
        "Currency":"EUR",
        "Amount":0
    },
    "Status":"FAILED",
    "ResultCode":"205001",
    "ResultMessage":"Data validation error",
    "ExecutionDate":null,
    "Type":"PAYIN",
    "Nature":"REGULAR",
    "CreditedWalletId":"85047449",
    "DebitedWalletId":null,
    "PaymentType":"CARD",
    "ExecutionType":"DIRECT",
    "SecureMode":null,
    "CardId":"261004457",
    "SecureModeReturnURL":null,
    "SecureModeRedirectURL":null,
    "SecureModeNeeded":false,
    "Culture":"FR",
    "SecurityInfo":{
        "AVSResult":"NO_CHECK"
    },
    "StatementDescriptor":null,
    "BrowserInfo":null,
    "IpAddress":null,
    "Requested3DSVersion":null,
    "Applied3DSVersion":null,
    "RecurringPayinRegistrationId":"273734496"
}
```