Export & Bulk Send — this page tells you plainly what is automatic today, what needs an export, and what isn't possible yet. No overclaiming.
Vyapar is one of India's most widely used GST billing and accounting apps for small businesses and shopkeepers, on mobile and desktop, without a fully open public developer API.
Vyapar doesn't publish an open developer API the way Tally or a modern SaaS does, so a live, automatic trigger straight from Vyapar into WhatsApp isn't something WA.Expert can offer today. What is real and works right now: export your invoices, customer list, or outstanding report from Vyapar, and use WA.Expert's bulk messaging to reach your full list on WhatsApp in minutes instead of sending each one by hand.
| What you need | Native in Vyapar | With WA.Expert |
|---|---|---|
| Create GST invoices | Yes, this is what Vyapar is built for | Not applicable, Vyapar stays your billing tool |
| Send one invoice to one customer | Depends on your Vyapar edition and sharing options | Yes |
| Send to your whole customer list at once | No | Yes, bulk messaging from an exported list |
| Official verified WhatsApp Business number | No | Yes, Meta-verified green tick |
| Scheduled, recurring reminders | No | Yes |
| Live, automatic trigger the moment you bill | No public API to build this on today | Not available for Vyapar today |
Use Vyapar's reporting and export options to pull your customer list, outstanding report, or invoice batch as Excel/CSV.
Upload the file into WA.Expert's bulk messaging tool or Google Sheets integration, mapping the phone number column.
Submit your message wording for Meta's one-time approval, reusable after that for every future send.
Send to the full list immediately, or schedule a recurring send for ongoing reminders.
Most businesses re-export weekly or monthly and repeat the send for the latest data.
Start free, connect your number, and follow the setup guide above. No credit card required.