Klemen Trade

Kontext

Elektroplus maintains product data in Minimax and needs a fast way to print shelf/product labels with EAN13 barcodes. ERP UI flows are too slow for day-to-day labeling tasks, especially when printing multiple items in batches.

Problem

• Employees need to find items by item code or EAN code and print labels immediately.
• Printing must produce stable A4 label sheets with correct grid alignment and page breaks.
• Partially used sheets require an offset (skip N labels before printing).
• Labels must include EAN13 barcodes and a price breakdown (net/VAT/gross).

Projektziele

• Minimal UI to add multiple items and quantities for a print run.
• Fetch item data directly from Minimax to avoid manual entry errors.
• Generate EAN13 barcodes in-browser and print in a consistent A4 grid layout.
• Support offset/skip for partially used label sheets.

Lösungsüberblick

We delivered a small web app that:

• Searches Minimax items by code or EAN and pre-fills label rows (name, EAN, price).
• Lets users build a batch list with quantities and remove items as needed.
• Renders print pages as a fixed 3×8 A4 grid (24 labels/page) with optional start offset.
• Generates EAN13 barcodes client-side via JsBarcode and triggers printing.

Architektur & technischer Ansatz

Minimax integration

• OAuth2 token handling with refresh support.
• Item lookup endpoints: `/items/code(...)`, `/items?SearchString=...`, `/items/{id}`.
• Single JSON endpoint that returns item payloads to the UI.

Print engine

• Print-only DOM rendering (`@media print`) with `@page` A4 sizing.
• Stable grid layout with automatic page breaks.
• Offset support: inserts empty labels before printing the batch.

Barcode generation

• Generates an <svg> per label and renders EAN13 using JsBarcode.
• Ensures rendering completes before calling `window.print()`.

Technologie-Stack

• PHP (Minimax client + JSON endpoint)
• JavaScript + jQuery (UI interactions, batching, print flow)
• JsBarcode (EAN13 rendering)
• HTML/CSS print styling (`@page`, grid layout, print-only rendering)

Results & Impact

• Fast daily workflow: search → add to batch → print.
• Reduced errors by pulling names/EAN/prices directly from Minimax.
• Consistent A4 output with predictable alignment and page breaks.
• Less wasted label sheets thanks to the offset control.

Summary

A Minimax-connected label printing tool that lets staff search items by code/EAN and generate print-ready A4 sheets of EAN13 barcode labels with a price breakdown—optimized for fast retail operations.