To set up a personal or business account, please visit follow these steps - https://www.paypal.com/au/brc/article/get-started-with-paypal-business-account
You can set your account here: https://www.paypal.com/au/webapps/mpp/account-selection
Once you have set up your personal or business PayPal account, Please create follow this userguide to grant access for third party developers to integrate with you PayPal Account - https://developer.paypal.com/docs/classic/admin/third-party/
Then, share with GameDay your PayPal API credentials and we will then enter these details in your Shop Back end for you