# Additional order fields

Use this object to [create](/json-rpc-api-reference/json-rpc-api-6.0/api-requests/additional-order-fields/add-additional-fields.md) / [update](/json-rpc-api-reference/json-rpc-api-6.0/api-requests/additional-order-fields/update-additional-fields.md) information on additional order/product fields.&#x20;

## Request parameters <a href="#parameters" id="parameters"></a>

<table><thead><tr><th width="351.5999755859375">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>AdditionalField</code></td><td><strong>Object</strong></td></tr><tr><td><code>AdditionalField.Label</code></td><td><strong>String</strong><br>Field text.</td></tr><tr><td><code>AdditionalField.Code</code></td><td><strong>String</strong><br>Field identifier. Alpha-numeric chars, underscores and dashes.</td></tr><tr><td><code>AdditionalField.Type</code></td><td><p><strong>String</strong></p><p>Field type:</p><ul><li>LISTBOX</li><li>CHECKBOX</li><li>TEXT</li><li>HIDDEN</li></ul></td></tr><tr><td><code>AdditionalField.ApplyTo</code></td><td><p><strong>Sting</strong></p><ul><li>ORDER</li><li>PRODUCT</li></ul></td></tr><tr><td><code>AdditionalField.Values</code></td><td><strong>Array of values</strong><br>Custom values you control.</td></tr><tr><td><code>AdditionalField.ValidationRule</code></td><td><strong>String</strong><br>The validation rule restricting the type of information shoppers can enter in the additional field during the purchase process.</td></tr><tr><td><code>AdditionalField.Translations</code></td><td><strong>Array of objects</strong><br>Details below.</td></tr><tr><td><code>AdditionalField.Translations.Label</code></td><td><strong>String</strong><br>Field text translated in the language of the <code>Translations</code> object.</td></tr><tr><td><code>AdditionalField.Translations.Values</code></td><td><strong>Object</strong><br>Custom values you control translated in the language of the <code>Translations</code> object.</td></tr><tr><td><code>AdditionalField.Translations.Language</code></td><td><strong>String</strong><br>ISO language code. (ISO 639-1 two-letter code).</td></tr></tbody></table>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.2checkout.com/json-rpc-api-reference/json-rpc-api-6.0/api-requests/additional-order-fields.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
