Here you can find some distinctions of the backend deployments.

Summary

Guestlogix's solution is multi tenanted, and therefore no separate provisioning of environments needs to happen. All a developer needs to get started are the API Key, and Secret Key. 

Product

Using the production API and Secret keys will make requests to the live production server. This means that credit cards will actually be processed, and content procured from the vendors. Take care in using these keys, and ensure they're only made use of in a live environment.

Sandbox

Should the SDK be initialized with sandbox keys, all interactions with Guestlogix servers will be through a separate, test only environment. This means that no real credit card numbers will be accepted, booking of products and inventory will not actually be processed. This is useful when testing the application.