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Green Receipt – WhatsApp Co-Existence API by BuyNxt

Simple. Fast. Made for Your Business.

BuyNxt’s WhatsApp Co-Existence API transforms customer communication. This solution allows retailers to use their existing WhatsApp Business number across both the app and the API simultaneously, without a new number, an extra device, or any technical complexity. Businesses can send automated ebills, loyalty messages, and alerts directly from the number their customers already trust, while ensuring all chats remain organised and accessible for follow-up.

Get in touch with BuyNxt

Get in touch with BuyNxt

    Solution Description

    • Turn your existing WhatsApp Business App number into a powerful automated customer engagement engine, without new hardware, new numbers, or any operational friction.
    • With BuyNxt Green Receipt ‘s Co-Existence API, you can automate e-bills, loyalty nudges, order updates, and service reminders from the same WhatsApp Business App Number, that you use every day. No new number. No tech headaches. No extra devices.

    1. Connect Your Existing Number

    • No new setup, no migration, no disruption. Your current WhatsApp Business number is instantly enabled for both app and API use.

    2. Automate Customer Touchpoints

    • Send e-bills, loyalty updates, order alerts, reminders, and more—automatically and at scale—directly from the number customers already trust.

    3. Manage Conversations Seamlessly

    • All chats flow into your WhatsApp interface, fully organised for easy follow-ups, faster responses, and better customer retention.

    Product Features

    • Faster replies to customers
    • Start in a matter of minutes
    • Use your existing business number
    • Send automated eBills, loyalty messages, and alerts
    • No extra device or backend work needed

    Product Benefits

    • Your business remains reachable even if the primary device is busy or offline.
    • All conversations are centralised for efficient follow-up.
    • Team members can share the workload to manage incoming messages.
    • Deliver timely, clear communication. Maintain a professional business image.
    • You maintain full control over staff access and permissions.
    • Scale as your customer base grows. No additional cost.

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