# External Client App (ECA) Setup

To perform metadata-related tasks in the **SmallBuilder Line Items builder** — such as **creating buttons or adding buttons to page layouts** — additional configuration is required for the External Client App provided by SmallBuilder Line Items.

### Configuration steps

1. In **Setup**, enter External Client App in the Quick Find box and select **External Client App Manager**.
2. Click **SmallBuilderLineItems**.
3. Click **Edit**.
4. Under **OAuth Policies**, set **Permitted Users** to **Admin approved users are pre-authorized**.
5. Under **App Policies**, select the **profile or permission set responsible for configuring the builder**.
6. Click **Save**.

<figure><img src="/files/sMThKGy1N5nBK1sEZTw6" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/MbDPGL2288VHz3LPHzfb" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/HGXzFxAyKJp94FjcnZRO" alt=""><figcaption></figcaption></figure>


---

# 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://help.smallbuilder.com/smallbuilder-line-items/getting-started/eca-setup.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.