If acquisition and payment already happen in WeChat in China, a mini program is usually shorter than forcing users onto a store app.
International teams often arrive asking for "a mini program" as if it were a file format. In practice it is WeChat login, templates, pay and a nearby storefront. Outside WeChat, build a web app or a store app instead.
A full WMS, a heavy offline PDA client, or App Store presence. Those stay on WMS or native apps. The mini program shares IDs; it does not become the warehouse.
Membership, catalog and orders should be the same records an iOS or Android app would call later. Building a second database "just for WeChat" is how companies pay twice.
It is a China-market channel. If your users are not in WeChat, skip it. If they are, it is usually the shortest path to a transaction.
Choose WeChat when acquisition and payment already happen there. Choose a native app for push, offline jobs or store branding. Many run both.
When the merchant account and category allow it, pay is part of the same delivery as catalog and order state.
If your buyers already pay inside WeChat, start at /en/miniprogram/. If they do not, start at /en/app/.