
WOPA is a WhatsApp invoicing assistant for UK tradespeople. Message it like “Invoice Chris £850 for rewire” and WOPA drafts a PDF invoice, lets you review it, emails it to your customer, tracks what’s outstanding, and helps chase unpaid invoices. Customers get a normal email; you stay in WhatsApp. WOPA remembers all your customers when you need it.
WOPA is a WhatsApp-based invoicing assistant designed for UK tradespeople, allowing users to create and manage invoices directly through messaging. It generates PDF invoices, tracks outstanding payments, and facilitates communication with customers while keeping all interactions within WhatsApp.