> ## 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.

# 105206

> <small>&#8249; [All error codes](/errors/codes#card-input-and-registration)</small>

<table>
  <tbody>
    <tr>
      <th class="header"><strong>Error message</strong></th>
      <td class="table-content">Registration data : Invalid format</td>
    </tr>

    <tr>
      <th class="header"><strong>Description</strong></th>
      <td class="table-content">The RegistrationData provided for the card registration is invalid.</td>
    </tr>

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

      <td class="table-content">
        <div class="label">Card tokenization</div>\
        <div class="label">Card registration</div>
      </td>
    </tr>
  </tbody>
</table>

#### Causes

This error may be triggered when attempting to update the Card Registration object with an invalid value for the `RegistrationData` parameter.

The `RegistrationData` value can be incorrect if:

* Data sent to the tokenization server was inaccurate, therefore the returned data is invalid.
* The wrong `RegistrationData` is used (missing character, formatting, etc.)

#### What to do

In such cases:

* Check that the correct value was used for the `RegistrationData` parameter.
* Check that correct values were sent to the tokenization server (`AccessKey`, `PreregistrationData`, and card information).