Start with the source data the team already trusts: billing exports, ERP invoice rows, finance spreadsheets, order records, and API payloads from internal systems. Upload a representative CSV, XLSX, JSON, or TXT schema, then map those headers to reviewed PDF fields before anyone treats the template as production-ready.
Keep GST fields explicit. GSTIN, HSN or SAC, place of supply, CGST, SGST, IGST, taxable value, and total fields should not be hidden inside one generic invoice-details block.
- seller_gstin, buyer_gstin, invoice_number, invoice_date, place_of_supply
- hsn_sac, item_description, quantity, unit_rate, taxable_value
- cgst_amount, sgst_amount, igst_amount, round_off, grand_total
- payment_terms, po_number, branch_code, finance_reviewer