E-Commerce

Restricting Your Delivery Zone

Barnet E-Commerce: Restricting Your Delivery Zone

You can restrict online delivery orders to a specific geographic area by setting up a delivery zone using Google Maps. This ensures customers can only place delivery orders within your approved service area.

Overview

To restrict your delivery area, you will need to:

  1. Create a delivery zone polygon in your Google account
  2. Generate a Google Maps API key (small Google usage fees may apply)
  3. Add the API key and delivery zone to Barnet Network

Once configured, delivery orders will only be accepted from addresses inside your defined zone.

Step 1: Create a Google Delivery Zone (Polygon)

Delivery zones are created using Google Maps tools and saved as a polygon (a drawn boundary on a map).

  • Log in to your Google Business / Google Maps account
  • Define your delivery area by drawing a polygon around the zone you serve
  • Google may charge a minimal usage fee depending on map activity
  • Once created, you will use this zone in Barnet Network

Barnet does not create or manage delivery polygons on your behalf. This must be completed in your Google account.

Step 2: Set Up Your Google Maps API Key

A Google Maps API key is required for address validation and delivery-zone checking.

Required Google APIs

When creating your API key, ensure all of the following APIs are enabled:

  • Distance Matrix API
  • Geocoding API
  • Maps JavaScript API

Google’s official guide to creating an API key: https://developers.google.com/maps/documentation/javascript/get-api-key

Step 3: Enter the API Key in Barnet Network

Once your API key is created:

  1. Log in to Barnet Network
  2. Navigate to E-Commerce / Delivery Settings
  3. Paste your Google Maps API key into the API field
  4. Save your changes

This allows Barnet E-Commerce to validate customer delivery addresses.

Step 4: Set Up the Delivery Zone in Barnet Network

After your API key is added:

  1. Go to Delivery Zone Settings
  2. Select Add Polygon
  3. Apply the delivery zone created in Google
  4. Save and confirm the configuration

Important Notes

  • Delivery orders will only be accepted within the defined polygon
  • Addresses outside the delivery zone will be blocked at checkout
  • Google usage fees are billed directly by Google, not Barnet
  • Incorrect or missing APIs will prevent delivery validation from working

Best Practices

  • Keep delivery zones simple (avoid overly complex shapes)
  • Test a few addresses inside and outside the zone before going live
  • Review zones periodically if your delivery area changes
  • Ensure your API key remains active and billing is enabled in Google
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