How to import into Zoho Books
- Download the CSV for your period above.
- In Zoho Books: Sales → Invoices → Import Invoices (or the ⋯ menu → Import).
- Upload the file; map the columns (Invoice Number, Date, Customer, GSTIN, Place of Supply, Item, HSN/SAC, Quantity, Price, Tax %, Total).
- Zoho creates a customer if the name is new, and one invoice per invoice number (line items grouped).
Note: a live OAuth push to Zoho Books needs a per-merchant Zoho connection; this app uses the CSV-import path so it works without that setup.