You can install the Boxtal app for Shopify from the Shopify app store by searching for "Boxtal".

By validating the addition of the application, you will be prompted to:

1. Sign in to your Shopify account if you're not already logged in.
2. Confirm the installation of the app on your shop.
3. After being redirected to Boxtal, create an account or connect an existing account.

After connecting your shop, you will be redirected to the Shipping > Pending page where your e-commerce orders will be imported.