# Forms

## Update form

### PUT

`https://api.typeform.com/forms/{form_id}`

Updates an existing form.

Your request body must include all the existing form fields, in addition to the new email field.

Overwrites the previously stored form with the given `form_id`. Any new fields in your request will be added to the form. Likewise, any fields you don't include in your request will be deleted from the form. **Make sure your `PUT` request contains every field you want to include in your updated form, including the field `id`.**

**NOTE:** Tread carefully when updating fields in forms. `PUT` overwrites the entire form, so if you don't include each field (with the original field `id`) in your `PUT` request, the missing fields **and results for those fields** will be deleted.

Details about the fields and elements for this endpoint are available in the **Create Form** description.

The `theme` property applies a theme to the form. If you don't specify a value for the 'theme' property, Typeform applies a **new** copy of the default theme to the form, **even if you already have a copy of the default theme applied to this form.**

## Request

### Path Parameters

`form_id`, required

Unique ID for the form. Find in your form URL. For example, in the URL "https://mysite.typeform.com/to/u6nXL7" the `form_id` is `u6nXL7`.

### Request Body

## Response

### Status

200 OK