Export & Bulk Send — this page tells you plainly what is automatic today, what needs an export, and what isn't possible yet. No overclaiming.
Khatabook is a widely used mobile app for small merchants and traders to track customer credit (udhaar) and payments digitally instead of a paper khata book, with no public developer API.
Khatabook doesn't publish a developer API, so there's no way for WA.Expert, or any third-party tool, to connect to it directly today. What is real: Khatabook lets you export your customer/credit list, and that export is what makes WhatsApp reminders possible. Type or export your list into WA.Expert, and send payment reminders to everyone who owes you money in one go, on WhatsApp, instead of calling or messaging each person by hand.
| What you need | Native in Khatabook | With WA.Expert |
|---|---|---|
| Track customer credit (udhaar) | Yes, this is what Khatabook is built for | Not applicable, Khatabook stays your ledger |
| Remind one customer individually | You message them yourself, outside the app | Yes, one at a time or in bulk |
| Remind your whole outstanding 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 log an entry | No public API exists for this | Not available for Khatabook today |
Khatabook lets you view and export your customer credit records from within the app.
Upload it as a file through WA.Expert's bulk messaging tool, or enter it directly if your list is short.
Submit your reminder wording for Meta's one-time approval, reusable after that.
Send to the full outstanding list immediately, or set a recurring schedule for ongoing reminders.
Most businesses using this pattern re-export weekly and repeat the send for whoever is still outstanding.
Start free, connect your number, and follow the setup guide above. No credit card required.