Automatically capture payments by redirecting to PayPal. It's easy to test you account in sandbox mode before going live.
To configure PayPal Express:
- From Manage, go to Store > Extensions
- Select Payments from Category in Store Extensions section.
- Find PayPal Express Checkout and Click Settings Cog Icon
- Provide your Client ID and Client Secret
- Click Update
How do I find my Client ID and Client Secret
See: https://developer.paypal.com/docs/integration/admin/manage-apps/#create-an-app-for-testing
You can switch your app from sandbox to live mode in your PayPal Developer Dashboard