# Step 3.2: Modify Form Fields





After you create the external form and add its fields in [Step 2](/build/webhooks/create-external-form), get the Component Question ID for each field.

<Frame>
    <img alt="Integration Details" src="__img0" />
</Frame>

### Add Question IDs to Form Fields [#add-question-ids-to-form-fields]

Add each field's question ID to that field's `data-id` attribute in the multi-step HTML form:

```html
<div class="form-group">
  <label for="email">Business email</label>
  <input
    data-id="<Component_Question_ID>"
    type="email"
    id="email"
    name="email"
    placeholder="john@telnyx.com"
    required
  />
</div>
```

Replace &#x2A;*`<Component_Question_ID>`** with the question ID you got when adding components to the external form in [Step 2](/build/webhooks/create-external-form).