Navigate to https://app.netsuite.com/
Click "Setup"
Go to Company -> Enable Features
Click "Transactions"
Click "PAYPAL INTEGRATION"
Click Save.
Go to Setup -> Accounting -> Paypal accounts
Provide an account Name
Provide your Paypal account email address
Select "Use Express Checkout"
Click on "Submit" button to save the configuration
Set up PayPal integration for Netsuite account | Scribe