Question 1

What is Dokan and how is it different from generic POS systems?

Accepted Answer

Dokan is a high-speed, multi-tenant shop management and Point-of-Sale platform engineered specifically for modern retail and wholesale businesses. Unlike generic web POS tools that freeze when internet connectivity fails, Dokan features an offline-tolerant architecture (IndexedDB sale queue with auto-sync and idempotency protection). It also provides built-in customer due tracking (Baki Khata with aging buckets), weighted-average COGS accounting, 80mm thermal receipt printing, trilingual localization (English, Bangla, Arabic), and a complete B2B dealer distribution module.

Question 2

Can my cashiers continue selling if the shop's internet goes down?

Accepted Answer

Yes. Dokan is built as an offline-first Progressive Web App (PWA). When the network drops, cashiers can continue barcode scanning, creating carts, and issuing thermal receipts without interruption. Sales are saved locally in the browser's encrypted IndexedDB storage. Once the internet connection is restored, Dokan's background sync engine transmits all offline sales to the server with unique UUID idempotency keys to guarantee zero duplicate billing.

Question 3

How does Dokan ensure my shop's sales and supplier data remain private?

Accepted Answer

Dokan implements a 3-layer security model. At the database kernel level, every single tenant-owned table is protected by PostgreSQL Row-Level Security (RLS) driven by session context (`SET LOCAL app.current_tenant`). Above that, Go backend middleware validates every request's subdomain and JWT signature, and the repository layer operates with fail-closed security that refuses to execute without tenant context. Cross-tenant data leakage is structurally prevented at the database engine level.

Question 4

How does Dokan handle customer credit (বাকি) and installment collections?

Accepted Answer

Dokan digitizes traditional credit ledgers (Baki Khata). When selling at POS, cashiers can accept partial cash or mobile banking payments and record the remainder as Customer Due. The system maintains an itemized ledger per customer, calculates aging buckets (0–30, 31–60, 61–90, 90+ days), generates official Money Receipt (Rosid) vouchers on collection, and allows sending automated SMS payment reminders.

Question 5

How does Dokan calculate accurate gross and net profit margins?

Accepted Answer

Dokan calculates Cost of Goods Sold (COGS) using the Weighted-Average Cost (WAC) method. When purchasing goods, landed costs (transportation fees, customs duty, labor) are proportionally distributed across line items to establish true unit acquisition costs. When an invoice is issued, the current weighted unit cost is snapshot directly into the invoice record, ensuring historical profit metrics remain strictly immutable even if vendor prices change in future batches.

Question 6

What hardware (barcode scanners, thermal printers, cash drawers) does Dokan support?

Accepted Answer

Dokan works seamlessly with standard retail hardware out of the box. It supports any USB, Bluetooth, or wireless handheld barcode scanner that operates as a standard HID keyboard emulator. Receipts are optimized for standard 80mm and 58mm ESC/POS thermal printers via browser printing, and standard RJ11 cash drawers trigger automatically upon cash sale completion.

Question 7

Can I manage multiple retail branches and a central warehouse?

Accepted Answer

Yes. Dokan supports multi-location stock control. You can create distinct branches and warehouses, track location-wise inventory levels, initiate inter-store transfer requisitions with in-transit tracking, and view branch-level sales performance from a single centralized dashboard.

Question 8

What is the B2B Dealer Network module and who is it for?

Accepted Answer

The Dealer Network module is designed for wholesalers, distributors, and manufacturing brands that sell through third-party authorized dealers. It provides dedicated dealer logins, territory management, custom wholesale price tiers, B2B order approval pipelines (Draft → Submitted → Approved → Dispatched), dealer credit limits, warranty claim tracking, and automated commission calculation.

Question 9

Does Dokan support product variants (sizes/colors) and unit conversions?

Accepted Answer

Yes. Dokan allows creating variant matrices (e.g. T-shirt sizes S/M/L/XL in different colors), generating distinct SKUs and barcodes for each variant. It also handles multi-unit conversions, allowing you to purchase inventory in bulk cases, boxes, or kilograms and sell in individual pieces or grams.

Question 10

What payment methods are supported for retail checkout and subscription billing?

Accepted Answer

For in-store POS checkouts, Dokan supports Cash, Visa/Mastercard/Amex cards, and popular Bangladeshi mobile financial services including bKash, Nagad, and Rocket, with support for split payments across methods. For Dokan SaaS subscription plans, payments can be settled via bKash, mobile banking, major cards, or direct bank transfer.

Question 11

Can I export my data if I decide to switch platforms?

Accepted Answer

Yes. You have 100% data ownership. Dokan provides a one-click data export tool that packages your complete product catalog, customer ledgers, supplier accounts, invoices, stock movements, and expenses into a ZIP file of standardized CSV files.

Question 12

Is there really a free plan, and does the 14-day trial require a credit card?

Accepted Answer

Yes. The Starter plan is completely free forever with support for up to 3 users, 200 products, and 1 branch. The Standard plan includes a 14-day free trial with no credit card required to start. You can upgrade, downgrade, or export your data at any time.

Frequently Asked Questions & Merchant Knowledge

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