Your customers already live on WhatsApp. Fatoora Now sends them the invoice, the payment receipt and the booker's order slip as a PDF, from your own number, with no photos of paper.
Connect your WhatsApp by scanning a QR code. Messages go from your business number, and delivery status comes back per message.
WhatsApp is part of the sale itself, not a separate bulk-message tool, so the right document always goes to the right customer.