Finished a flat roof repair, a full re-tile, or a gutter replacement? Message WOPA and the invoice goes out by email while you load the van. No app to open, no spreadsheet to update.
Try WOPA now on WhatsAppScan the QR or tap to open a demo conversation with the WOPA bot.
Stripped and re-felted a single-storey flat roof extension. New torch-on felt and lead flashing.
Stripped old concrete tiles, replaced battens, and re-tiled with new Marley Moderns on a three-bed detached.
Removed old cast iron gutters and downpipes, replaced with new black uPVC all round the property.
Send WOPA a message like you would a colleague. Customer name, amount, and what the work was. WOPA turns it into a draft invoice.
Review the customer, work, amount, due date, and bank details. Nothing leaves WhatsApp until you approve it.
Your customer gets a proper PDF invoice by email. They do not need WhatsApp to receive or pay it. Reminders run at 7, 14, and 28 days.
WOPA runs inside WhatsApp. No download, no login, no dashboard. You already have the app on your phone.
Your customers receive a clean A4 PDF invoice by email with your business name, bank details, and payment reference.
WOPA sends polite follow-ups at 7, 14, and 28 days. You can pause, stop, or adjust reminders from the chat.
Ask "who hasn't paid?" and WOPA shows every open invoice. Mark one paid and reminders stop immediately.
Founder pricing for the first 200 waitlist signups. No card required today.
Reserve founder pricing