A Laravel-powered point-of-sale and repair workflow that centralizes inventory, invoices, petty expenses, delivery collections and multi-shop analytics, built to help a multi-store mobile accessories and repair business in Portugal increase revenue, reduce loss, and speed up repairs.
Duration: 4 months 3 days | Industry: • Business • eCommerce
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Owner of three mobile shops across different Portuguese cities. Shops sell chargers, handsets, headphones and offer repairs (batteries, LCDs, glass, casings). Two employees deliver accessories and collect cash. Client needs an inventory + invoicing + repair management system that supports tiered pricing (cost, market price, minimum sale price), receipt of supplier invoices into inventory, repair & sale invoices, petty expenses, and both per-shop and consolidated analytics (totals, profit/loss, expenses).
We delivered a focused retail & repair system tailored for small, multi-outlet mobile shops. The app handles accessory intake (supplier invoices → inventory), customer sales, repair jobs (with mandatory contact details), employee cash collection flows, petty shop expenses, and robust analytics across each location and the group as a whole. Built with reliability and fast day-to-day usability in mind so shopkeepers can spend less time on bookkeeping and more time selling and repairing.
The client needed a lightweight, reliable system that maps real shop workflows: multi-price items, physical inventory intake from supplier invoices, repair lifecycle tracking, employee deliveries/cash collection, petty expenses, and consolidated analytics — all while remaining fast and easy for non-technical shop staff.
Inventory reconciliation when accessories arrive (supplier invoice → inventory) and different price tiers per item.
Repair jobs require customer contact info and traceable lifecycle; sales can be anonymous.
Employees collect cash in the field — need tracking to avoid reconciliation errors.
Multi-shop view and per-shop P&L, expenses, and consolidated reporting.
A compact POS + Repair Management web app that transforms supplier invoices into inventory, supports two invoice types (repair & purchase), tracks cash collected by employees, records petty expenses, enforces pricing rules, and generates both per-shop and consolidated analytics dashboards.
Invoice intake workflow that converts supplier invoices into stock items.
Repair job workflow with mandatory customer name & phone and status tracking.
Delivery/collector module to track employee deliveries and cash collection.
Multi-shop analytics and consolidated profit/loss/expenses dashboards.
Here's a breakdown of the steps we took to bring this project to life, from the initial idea to the final launch.
Week 1-2
We mapped the client’s daily operations step-by-step: supplier receipt, inventory update, repair lifecycle, anonymous and customer invoices, petty expenses, and employee cash pick-ups. From that we extracted user roles (owner, shopkeeper, delivery agent), entity models (Item with cost/market/minPrice, Invoice, RepairJob, Expense, Collection), and reporting KPIs. We prioritized a simple UI that the shopkeeper can learn in a single shift.
Week 3-5
Wireframes focused on the most frequent tasks: creating an incoming invoice (quick add multiple SKUs + quantities), creating a sales or repair invoice, and viewing today’s cash & expenses. We prototyped the repair lifecycle (Received → Diagnosed → Repairing → Ready → Delivered) and the delivery/cash collection flow. Prototypes were tested against real use cases to reduce clicks.
Week 6-10
Implemented a clean, responsive UI optimized for quick data entry on tablets and desktops (shopkeepers use both). Delivered components: quick invoice builder, repair job card, expense quick add, and dashboards. Recommended TALL stack patterns (Tailwind + Alpine + Livewire) for snappy interactions with minimal JavaScript overhead.
Week 11-14
Built the domain in Laravel: models, policies, validations, and priced-inventory logic. Key rules implemented: each Item stores cost_price, market_price, min_sale_price; invoices created on receipt increase inventory; sale invoices check min sale price and surface warnings. Implemented role-based access control, employee collection entries, and data export (CSV/PDF) for bookkeeping.
Week 15-16
QA included workflow smoke tests (create intake invoice → inventory increases), permission tests, and reconciliation tests for employee collections vs shop cash. We rolled out to one store first, gathered feedback, adjusted small UX issues (e.g., quick search by SKU, required phone input flow), then deployed to the remaining two stores. Training materials and a 1-page quickstart were provided.
Reduce manual bookkeeping, prevent stock/price errors, speed up repair throughput, and provide clear per-shop and consolidated financial reporting.
Ensure supplier invoices automatically update inventory and preserve cost history.
Make repair jobs traceable and contactable (name + phone mandatory).
Track employee deliveries/cash collections to eliminate reconciliation gaps.
Provide per-shop and consolidated dashboards for revenue, profit, loss, and expenses.
After launch (pilot store → full roll out), the system streamlined intake, cut reconciliation errors and gave the owner a real-time financial picture across all stores.
Inventory errors and duplicate entries reduced through structured intake workflows.
Faster customer callbacks and higher repair pickup rates due to tracked customer contact and job status.
Clearer expense tracking (breakfast, tea, water, shop utilities) improved per-shop profit visibility.
Consolidated dashboards enabled the owner to spot underperforming SKUs and optimize restock decisions.
Create a supplier/receiving invoice that, when accepted, adds items and quantities to the selected shop inventory.
Bulk add multiple line items quickly. Each line stores cost_price, market_price, min_sale_price and purchase date. Automatic stock ledger entries for auditing.
Two invoice flows:
a) Sale/Buying Invoice (customer details optional) and
b) Repair Invoice (customer name + phone required).
Repair invoices create a repair job linked to the invoice. Sale invoices can be quick and anonymous for over-the-counter accessory purchases.
Track each repair through statuses (Received → Diagnosed → Repairing → Ready → Delivered).
Store customer contact, device notes, estimated cost. Generate automated SMS/email reminders (optional) when job status changes.
Register deliveries made by field employees and the cash they collect from retailers or clients.
Employee collection records with timestamps and supporting notes. Reconciliation view to match daily cash against register.
Record shop and self expenses (breakfast, lunch, tea, water, utilities).
Expense categories, recurring expense templates, and per-shop expense reports. Expense allocation affects per-shop profit calculations.
Dashboards per shop and consolidated across all shops.
Profit and loss, revenue, COGS, margins, expenses, and inventory valuations. Time filters (daily, weekly, monthly) and exportable CSV reports.
Enforce minimum sale price and warn if a sale is attempted below min_sale_price.
Automatic calculation of gross profit per item and per invoice. Price history per SKU for market-price changes.
Owner, Shopkeeper, Delivery Agent roles with activity logs.
Audit trail for inventory changes and cash collections. PDF invoices, CSV exports for accountants.
The team at Zenoitech did an amazing job on our Smart POS & Repair Management system. It's incredibly intuitive and has streamlined operations across all our mobile shops. The project was a huge success, and we're thrilled with the results.
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