The what3words Shopify app allows a 3 word address field to be added to a Shopify Plus checkout page. Store users can then add a 3 word address to orders.
Shopify Plus is required for developers to make changes to checkout fields.
You will need a what3words API key to complete this tutorial.
To add the what3words Shopify app to a store, first log in to your Shopify developer account.
Install the app by adding the following URL to your internet browser: https://shopify.what3words.com/oauth?shop=[shophandle].myshopify.com – where [shophandle] is the handle for the store to be installed on.
Click to “Install unlisted app”
Select “Apps” from the store menu to verify the what3words app is installed.
Select the what3words app and enter your API key. Click “Save”
A new field should appear on the checkout page