This document will explain what is needed to setup access to PayJunction and install the connector.
Request an application key from PayJunction. Details on how to do this are here.
There are multiple steps in the connection setup:
Choose the required domain:
https://api.payjunctionlabs.com for test sandbox environment. More details about the sandbox environment can be found here.
https://api.payjunction.com for production environment.
Enter the PayJunction application key.
Enter your PayJunction username and password.