---
title: "Cart Building, Barcode Scanning & Weighed Items Guide"
description: "The **TRAX Store Management System** cashier counter is engineered for rapid item registration using handheld barcode scanners, touchscreen category filters, or dynamic weight calculations. --- ### 1. Rapid Item Registration Methods Cashiers can add products to the active bill through…"
url: "https://group-trax.com/v1/knowledge-base/cart-building-barcode-scanning-weighed-items-guide/"
updated: "2026-10-12"
category: "Trax documentation root v1 / 06-Daily POS Operations"
---

# Cart Building, Barcode Scanning & Weighed Items Guide

The **TRAX Store Management System** cashier counter is engineered for rapid item registration using handheld barcode scanners, touchscreen category filters, or dynamic weight calculations.

---

### 1. Rapid Item Registration Methods

Cashiers can add products to the active bill through three integrated methods:

- **Instant Barcode Scanning:** Point your handheld scanner at any product barcode. The system captures the code and immediately adds the item with a single beep (thanks to automatic carriage return detection).
- **Live Name / SKU Search:** Type product letters or partial numbers in the top search bar (`name_or_barcode`).
- **Visual Category Touch Tiles:** Tap category filter pills across the top (`All, Beverages, Bakery, Produce, Dairy...`) to filter product cards, then tap any product photo to add it directly to the active cart.

 ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-13.41.56-scaled.png)

Visual Reference: POS Retail Checkout Workspace

---

### 2. Handling Items Sold by Weight (Produce & Bulk Goods)

When an item is configured to sell by weight (e.g., fresh fruit, vegetables, bulk nuts, butchery):

1. Tap the product tile on the screen.
2. TRAX POS automatically launches the **Enter Weight** dialog modal.
3. Type the measured weight on the keypad (e.g., `1.45 kg`).
4. The unit measurement badge (`kg, g, pcs`) dynamically adapts according to product settings.
5. Click **Add to Cart** (or press `Enter`). The system calculates:
   `Weight × Price per Unit = Line Item Subtotal`.

 ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-14.31.25-scaled.png) ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-14.33.57-scaled.png)

Visual Reference: Enter Weight Dialog Modal

---

### 3. Out-of-Stock Warnings

If inventory tracking is enabled for a product and available stock is zero, the product card displays a red stock badge and the cashier's employee can't choose this product.

 ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-14.43.12-scaled.png)

> Note : You can also see the products that are not available in the store from the page (**Store**)
>
>  ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-14.50.56-scaled.png)

---

> Note : The number of products in the warehouse can be modified or changend by modifiying the product itself.
>
>  ![](https://group-trax.com/wp-content/uploads/2026/09/Screenshot-2026-10-12-at-15.08.09-scaled.png)