View source for Enabling PayPal Express Checkout

Sign up for a PayPal account now

You must have a PayPal business account and you must grant Spiffy Stores third-party API Access in your profile.

Navigate directly to the Give Third Party API Permission page.
Enter studio_api1.spiffy.com.au as the API account username
Check all of the boxes list, then click Submit
Direct Payment
PayPal Express Checkout
Reporting and Backoffice APIs
Authorization and Settlement APIs
On the following screen click the Give Permission button
Click the Edit button to edit the permissions and check ManagePendingTransactionStatus
Click Submit