Before installing the Checkout SDK, you have to activate the relevant services in the Unity Portal.
For Checkout Drop-in to work properly, you first need to whitelist all of the domains from which your requests will originate. Requests coming from non-whitelisted domains will be blocked. For more information, see Whitelist domains.
Before you can use Drop-in, you need to activate the Checkout Drop-in service and all relevant payment method services (e.g., Card service). No additional fees are charged at this level.
To activate services for a site:
- In the Unity Portal, go to Merchant setup > Sites.
- Select a site.
- Click on the Services tab.
- Find all relevant payment method services and switch their Active toggles on.
- Find the Checkout Drop-in service and switch its Active toggle on.
Your services are now activated.
Transactional fees apply individually for each payment method, regardless of whether the service is enabled or not. Fees are charged per transaction based on your agreed pricing.
If you're planning to offer payments with PayPal, Apple Pay, or Google Pay, you'll need to complete the onboarding process for each of these methods.
If not, you can go ahead and configure your authentication settings.