EZR Open Platform
The EZR 开放平台 integration surface — 236 documented interfaces across 11 business domains (base data, member master data, loyalty points, coupons, sales data, WeChat mall, external mall distribution, messaging, gift cards, third-party platform binding, and extension references). Every interface is an HTTPS POST to a verb-named route with an application/x-www-form-urlencoded envelope of AppId, Sign, Timestamp, AppSystem and Args, where Args is the business payload as a JSON string. Responses always return HTTP 200 and signal the real outcome in a numeric StatusCode. 31 of the interfaces are EZR-to-integrator push callbacks. No OpenAPI is published.