# Vocabulary, formats and error codes

> The words NegoBill uses and what they mean (sale not bill, dues, buying price, write off, ledger not khata, Bill Receipt vs Tax Invoice), the formats (₹ money, dates as 03 Sep 2026, phone numbers, GSTIN), and how error codes read (NB-B-XXX-NNNN) with the common ones.

- Product: NegoBill V5 (https://negobill.com) · Module: VOCABULARY
- Platforms: web app (app.negobill.com), Android app, iOS app
- Plans: Every plan
- Updated: 2026-09-26 · Page: https://negobill.com/manual/vocabulary-and-errors · Markdown: https://negobill.com/manual/vocabulary-and-errors.md

## Words

- **Sale:** what a bill is called; the counter "makes a sale". A **Bill Receipt** is a plain sale outside GST reports; a **Tax Invoice** carries the GST split and goes into GSTR-1. A **Sale Return** is the credit note.
- **Pre-sale:** Quotation, Estimate or Proforma Invoice: no stock, no money, convertible to a sale.
- **Dues:** what a customer owes now (open bills minus receipts). **Advance:** money received beyond bills. **Payable:** what the shop owes a supplier.
- **Buying price / profit:** the shop's cost per unit and the sale price minus it; profit % is a share of the sale price. Never "landing cost" or "margin" in the interface.
- **Batch:** one stock entry with its own buying price, MRP, sale price, quantity and optional expiry. **Write off:** removing damaged, expired or miscounted stock from a batch with a reason; never "delete stock".
- **Ledger / statement:** the account book and a contact's running-balance view; never "khata". **Box Cash:** a cash drawer's day and count.
- **Store:** the main store, an outlet, or a van's home. **Billing profile:** the legal seller on the paper. **Business:** the account that holds everything.
- **Fits:** the models a product fits ("for iPhone 15 Pro"). **Product code:** the manufacturer's model code. **Barcode:** the shop's scan code.
- **Trade kit / pack:** the preset for a kind of business (modules, fields, job types, words).

## Formats

- Money: rupees with two decimals and Indian grouping, "₹1,13,081.00"; stored in paise. Blank amount means zero.
- Dates: shown as "03 Sep 2026"; sent as YYYY-MM-DD; every date follows the store's clock.
- Phone: country code plus a digits-only national number; the default country is the main store's. GSTIN: 15 characters, the first two digits are the state code.
- Document numbers follow the series pattern in Settings → Numbering (for example B2026202799 for a bill).

## Error codes

Every refusal has a code NB-B-AREA-NNNN and a plain sentence. Areas: IDN (sign-in and accounts), TNT (tenancy, plan and modules), SAL (sales), PRD (products), CON (contacts), EXP (expenses), ACC (account reset and deletion), ADM (Control Centre), AST (assistant), DMO (demo data). Common ones:

- NB-B-IDN-1002: email/phone or password is wrong. NB-B-IDN-1003/1004/1005: sign in again (token expired, session revoked, signed in on another device). NB-B-IDN-1013: the current password is wrong (change password).
- NB-B-TNT-1004: the module or plan does not allow this; the message names what unlocks it.
- NB-B-SAL-1014/1017: discount or price outside the rules; NB-B-SAL-1016: below the minimum sale price.
- NB-B-EXP-1000: the request lacks the billing profile (an app bug, not the user's).
- NB-B-ACC-1002: wrong or expired code; NB-B-ACC-1004: type the business name exactly; NB-B-ACC-1008/1009: a reset after 30 days needs both codes.
- NB-B-AST-1002: the plan has ended (the account is locked) or the owner switched the Assistant off; NB-B-AST-1003: the tool is not in the plan or not in the person's permissions.

## Rules of the interface

- Never a browser dialog; confirmations are in-app modals. Placeholders are hints, never example values.
- Every action has an icon; many users read little. Amounts are right-aligned in a monospace figure font.
- Three failure faces everywhere: expired token → sign in; server down → "Unable to reach server"; no network → "No Internet" and a Back to Live banner.