Add PayPal REST API credentials placeholder to the sandbox settings.
Add PayPal REST API credentials placeholder to the sandbox settings.

django-oscar/django-oscar-paypal,st8st8/django-oscar-paypal,evonove/django-oscar-paypal,django-oscar/django-oscar-paypal,evonove/django-oscar-paypal,evonove/django-oscar-paypal,st8st8/django-oscar-paypal,django-oscar/django-oscar-paypal,st8st8/django-oscar-paypal