What Works Offline
✓ Create/edit customers & measurements · ✓ Create/edit orders & update order status · ✓ Browse cached product/service catalog · ✓ Record cash/manual payments
Requires connection: online payment gateway transactions, SaaS subscription payments, Shopify sync, Meta/Google ad integrations, Analytics data refresh. These fail gracefully and queue where applicable — they never crash the app or block offline POS work.