A binding connects your Mini App to a host app — the app your Mini App runs in. From the binding you choose which Shoppingate APIs your Mini App can call.
Open Mini-Program, select your Mini App, and click the App Binding tab in Information Details. The table lists the host apps your Mini App is bound to:
In the Action column, click API Configuration.

API Configuration shows two lists:
Each row shows the API name, API category, Usable Range (Public or Private) and a one-line API Description. Find the API you need in the Restricted API list and click Details in its row.

API details shows the API's name, category, usable status and description. In API use application, write why your Mini App needs this API — for example, "Need this function for the user to pay for orders." Then click Application use.

Your request is reviewed by the Shoppingate admin.

SGConf.js before ft.<name>(...) works. See Host functions → Step 2.