A multi-tenant storefront platform built and operated by Undertide — small shops sign up, bind a card, and get a themed online store in minutes. Three surfaces in one system: a buyer-facing storefront with WhatsApp-native ordering, a self-serve merchant CMS, and a platform console that runs every tenant.
Small retail in Malaysia already sells through WhatsApp — that is where orders actually close. What shops lack is everything before the chat: a browsable catalog, prices and variations, a presentable brand. Suntide is Undertide's own product answer: a subscription storefront platform where a florist or cake studio gets a real online store that funnels into the WhatsApp conversation they already run.
Instead of bolting on a payment gateway buyers don't expect, checkout assembles the cart — variations, gift message, totals — into a prefilled WhatsApp message with a sequential order number. The merchant receives a structured order in the channel they already work in, and nothing about how they transact has to change.
A buyer-facing storefront, a merchant admin, and a platform console share one codebase and one database. Merchants manage products with variations, drag-and-drop images with automatic compression, categories, hours, languages, and their own Stripe billing; the console handles onboarding, per-store pricing, trial management, suspension, and full offboarding.
Signup auto-provisions the store, Stripe Checkout binds a real card into a 7-day trial, and RM49/month billing proceeds from there — driven by signed, idempotent webhooks. If payment lapses, a three-state lock model closes the storefront gracefully and the merchant's admin shows exactly how to reopen it. Pricing lives in one place, with per-store overrides.
Every table is keyed by store, row-level security is default-deny, and all writes go through server-side actions — cross-tenant access is structurally closed and was verified by proof-of-concept attack. On top of that isolation, each shop picks an accent color that themes its whole storefront, guarded so merchants can't pick an unreadable palette.
One Next.js codebase on Vercel with a Supabase Postgres core — 19 migrations, row-level security default-deny with server-action writes, signed idempotent Stripe webhooks, and a unified warm design system where the merchant's accent color is the only per-store exception.
If your market needs a product like this — or your business needs a platform of its own — tell us what you're thinking. Undertide will assess fit and recommend the right scope.
