The API endpoints are accessed by changing the URL in the API request for the specific endpoint. For example: To access the locations endpoint at the time of writing you may use the URL = “https://sandbox.coreplus.com.au/API/Core/v2/location/”.
When developing your application you should check what the current endpoint address is. In the above example we are using “v2”, but this maybe subject to change in the future. Once you have set up your add-on you can use the built in coreplus developer API explorer to find and test some of the end points. You will find the the API explorer in Developer sidebar menu.