To use BurgerPrints with Customily for Shopify or WooCommerce, the first thing you need to do is to create an account on BurgerPrints. If you don't have an account with BurgerPrints, you can create one here.

Once you have your BurgerPrints account created, open your Customily app on Shopify and follow these steps.

1. Head on to Start or Store on the left menu
2. Go to Settings and open the Integrations tab.
3. If you have more than one store on your account, make sure you are changing the setting of the correct store by selecting it from the top left dropdown.
   
4. Select BurgerPrints from the Select a provider for integration dropdown
5. Click enable integration
   
6. Paste your BurgerPrints API Key. Learn where you can find your API Key on BurgerPrints here. 
   If you see a field to add an API secret, leave it empty.
   
7. Click Save Settings at the bottom of the page.