Web
Next.js
A modern web technology for fast, search-friendly websites, online stores and web applications that load quickly on mobile.
Used for
- Business websites
- Online stores
- Web apps
- Customer portals
B2B ordering portals
B2B e-commerce development
Online ordering for distributors, wholesalers and manufacturers that respects negotiated prices, credit terms and the ERP you already run.
At a glance
The short version
What it is
Ordering portals and apps for manufacturers, distributors and wholesalers, with buyer-specific pricing, credit limits, bulk ordering and ERP sync.
- What you get
- Buyer portal and app
- Sales rep app
- Back office
- ERP and finance sync
- How it works
- Buyer portal or rep app
- Pricing engine
- Back office
- Tally or ERP sync
- 2 more
- Runs on
- Web app
- Android
- PWA
- Admin
- Built with
- Who it's for
- Cost depends on
- ERP integration depth
- Pricing rules
- User roles
Flutter and the related logo are trademarks of Google LLC. We are not endorsed by or affiliated with Google LLC.
How to start
Tell us what you need in your own words. You talk to the developers who would build it and get a written, line-item estimate.
Get a project estimateMoving trade orders off WhatsApp and spreadsheets
In many distribution businesses the ordering system is a sales rep's phone. Orders arrive as messages, photos of handwritten lists and calls; someone at head office re-keys them, checks prices and credit, and raises the invoice.
A B2B e-commerce portal replaces that re-keying with self-service. Retailers see their own prices and outstanding balance, reorder from past invoices in a few taps and get confirmations automatically. Reps stop being order-takers and spend their visits on new outlets and new products.
Challenges
Friction in trade ordering today
Orders typed twice
Every WhatsApp or phone order is re-typed into the ERP, adding errors.
Wrong prices on invoices
Customer rates, schemes and slab discounts live in people's heads or scattered sheets.
Credit exposure
Goods ship to buyers over their limit because balances are hidden at order time.
No view of stock
Buyers and reps cannot see availability, so confirmed orders are cut short at dispatch.
What is included
Portal, rep app and back office
Platform: Web and Android
Buyer portal and app
- Customer-specific price lists, slabs and schemes
- Quick order by SKU or from past invoices
- Case packs, minimum quantities and multiples
- Ledger with outstanding, invoices and payments
Platform: Android
Sales rep app
- Beat plans and outlet visits
- Orders on behalf of retailers, captured offline
- New outlet registration with a GSTIN check
- Collections recorded against invoices
Platform: Admin dashboard
Back office
- Credit limits with holds and approvals
- Quotes and negotiated pricing for large orders
- Schemes and discounts by territory
- Order routing to the right warehouse
Platform: Integration layer
ERP and finance sync
- Stock and prices pulled from the ERP
- Orders pushed back as sales orders
- E-invoices and e-way bills where applicable
- Payments matched through virtual accounts
How it works
How a retailer’s reorder flows into your ERP
The commercial rules your sales team applies by hand today are applied automatically at every step.
- Buyer portal or rep app
Step 1: Buyer or rep builds the order
A retailer reorders from a past invoice, or a sales rep takes the order in the shop, even without a network.
- Pricing engine
Step 2: Their prices and schemes apply
The buyer’s own price list, slab discounts, running schemes and case-pack rules are applied without anyone looking them up.
- Back office
Step 3: Credit limit is checked
If the order would cross the buyer’s limit or invoices are overdue, it is blocked, allowed with a warning or sent to an approver.
- Tally or ERP sync
Step 4: The sales order lands in your ERP
The confirmed order is pushed as a sales order and routed to the right warehouse, and stock is reserved.
- Warehouse
Step 5: Dispatch with the right tax documents
E-invoice and e-way bill are generated where they apply, and the buyer gets a dispatch alert with the invoice attached.
- Virtual account
Step 6: Payment is matched automatically
NEFT, RTGS or UPI payments are matched to the buyer and invoice, and the ledger in the portal updates by itself.
Integrations
Systems a B2B portal talks to
Accounting
Tally
Stock, ledgers and vouchers via Tally's XML interface.
ERP
SAP Business One, Zoho Inventory or Busy
Items, price lists and orders via APIs or scheduled imports.
Tax documents
GST e-invoicing and e-way bill
IRN and e-way bill generation through a GST Suvidha Provider.
Collections
Virtual accounts
Per-buyer account numbers that auto-match NEFT and RTGS payments.
Payments
UPI and payment links
Dues paid from the portal or a WhatsApp reminder.
Messaging
WhatsApp Business Platform
Order confirmations, dispatch alerts and payment reminders.
Platforms
Where buyers, reps and your team order
A web portal that buyers can also install as a web app, a field app for Android used by sales reps, and an admin dashboard for pricing, credit and ERP sync.
- Web
Web application
Browser-based applications with logins, roles and workflows, such as customer portals, SaaS products and internal tools.
- Mobile
Android app
Apps for Android phones and tablets, tested on budget and mid-range devices and published on Google Play or privately.
- Web
Progressive web app
Installable web apps with offline support and notifications, useful when an app-store listing isn't essential or phones have little storage.
- Back office
Admin dashboard
Back-office panels for operations, support and finance teams: orders, users, content, reports and permissions.
Technology
Technology behind B2B ordering, and why it matters
Next.js and React for the buyer portal, Flutter for the offline rep app, NestJS with PostgreSQL for pricing and credit rules, and Redis to keep large price lists fast.
Web
React
Builds interactive screens in the browser, such as dashboards, admin panels and portals, that respond instantly as your team works.
Used for
- Web apps
- Admin panels
- Dashboards
- Customer portals
Backend
NestJS
A structured way to build back ends on Node.js, so large business systems stay organised, testable and easy to hand over.
Used for
- Business app back ends
- SaaS platforms
- Marketplaces
- Admin panel back ends
Data
PostgreSQL
A reliable database for the records your business runs on: orders, payments, bookings and stock, kept accurate and easy to report on.
Used for
- Orders and customers
- Payments and ledgers
- Stock and inventory
- Bookings
Data
Redis
Keeps frequently used data in fast memory, so apps stay quick on busy days and live features like order tracking feel instant.
Used for
- Faster apps
- Live order status
- Shopping carts
- Job queues and alerts
Mobile
Flutter
Build Android and iOS apps from one shared codebase, so you launch on both platforms faster with a consistent experience.
Used for
- Mobile apps
- Delivery apps
- E-commerce apps
- Booking apps
Payments & maps
Razorpay
Lets customers in India pay by UPI, cards, netbanking or wallets, and handles subscriptions, refunds and payouts to sellers or partners.
Used for
- UPI payments
- Cards and netbanking
- Subscriptions
- Payment links
Cloud & DevOps
AWS
Cloud hosting for your app, website and data, with data centres in India and room to grow when traffic rises.
Used for
- App hosting
- File and photo storage
- Backups
- Busy sale days
Flutter and the related logo are trademarks of Google LLC. We are not endorsed by or affiliated with Google LLC.
Plain-English glossary
B2B ordering terms, in plain English
- Customer-specific price list
- A set of rates tied to one buyer or tier, including slab discounts and running schemes. The portal shows each buyer exactly what they will be invoiced, so sales teams stop correcting prices by hand.
- Credit hold
- An automatic stop on orders that would push a buyer past their agreed credit limit, or that arrive while invoices are overdue. Your accounts team decides whether to release, reduce or reject them.
- Beat plan
- The list of outlets a sales rep visits on each day of the week. The rep app loads that day’s shops with their prices and outstanding dues, so orders can be taken quickly, even without signal.
- Virtual account
- Each buyer gets their own account number to pay into, issued through your bank or payment partner. Incoming NEFT and RTGS payments then identify the buyer by themselves, removing most manual matching.
- E-way bill
- An electronic permit under GST for transporting goods worth more than a threshold, created before the truck leaves. The portal can fill it from the order data, so dispatch is not held up by paperwork.
Product preview
Screens for buyers, reps and your back office
Illustrative screens, using an ordering system for an FMCG distributor as the example.
Buyer portal. Retailers see their own negotiated prices, case packs and live stock, and reorder from past invoices in a few taps. 
Sales rep app. Reps take orders in the shop without a network; stock and credit checks run automatically when the phone reconnects. 
Back office. Accounts staff see which orders crossed a limit or have overdue invoices, with the buyer’s ledger alongside, and release or reject them in one place. 
Buyer portal. Buyers check invoices, payments and their outstanding balance themselves, which cuts routine calls to your accounts team.
Illustrative preview
Sample screens: names, prices and figures are examples, not client data.
Industries
Trade sectors we build ordering systems for
Services
Services behind a trade ordering system
E-commerce development
Online stores, shopping apps and B2B ordering portals on Shopify, WooCommerce or custom stacks, wired to Indian payments, couriers and GST invoicing.
Web application development
Browser-based products, customer portals, dashboards and internal tools, built on clean data models with secure roles and integrations.
Mobile app development
Native and cross-platform Android and iOS apps, from first release through regular store updates, built by our in-house designers and engineers.
API development
Secure, documented REST and GraphQL APIs, plus integrations that connect your apps to payment, logistics, GST, messaging and business systems.
Admin panel development
Back-office dashboards built around your team's daily tasks: order queues, approvals, catalogue management, payouts, reports and audit logs.
Custom software development
Software shaped around how your business runs, from approvals and inventory to billing and reports, replacing spreadsheets and disconnected tools.
Work
Related sample project
E-commerce & marketplaces
Illustrative sampleB2B wholesale ordering app
An illustrative ordering app for a distributor's retailers and sales team, with tier pricing, credit limits, trade schemes and GST invoicing.
- B2B commerce
- Mobile app + web admin
Runs on
- Android
- iOS
- Cross-platform
- Admin
Built with
- React Native
- Node.js
- PostgreSQL
- Redis
- AWS
- +1 more
Cost drivers
Effort drivers in B2B e-commerce development
ERP integration depth
One-way stock and price sync is modest; two-way orders, invoices and ledgers take far longer.
Pricing rules
Customer lists, slabs, schemes and territory discounts each need modelling and tests.
User roles
Buyers, reps, distributors, approvers and accounts staff each need their own views.
Offline field use
Offline order capture and sync for reps adds engineering and testing.
Data clean-up
Customer masters, price lists and SKU codes often need cleaning before import.
Estimates are written from your scope, with the effort and assumptions behind each line item.
How pricing worksFAQ
Frequently asked questions
Can each buyer see their own prices and credit balance?
Yes. Each buyer account links to a price list or tier, with slab discounts and active schemes applied automatically, so what they see is what gets invoiced. The portal can also show their credit limit, outstanding amount and overdue invoices from your ERP or accounting system. Orders that would breach the limit can be blocked, allowed with a warning or sent for approval.
Can the portal sync with Tally?
Yes. Tally can exchange data through its XML interface, and connector products also exist. Typically we pull stock items, price levels and ledger balances into the portal on a schedule and push confirmed orders back as sales orders or invoices. Where Tally runs on a single office PC, we plan for the times that machine is off. SAP Business One, Zoho and Busy follow the same pattern.
Do we need e-invoicing and e-way bills in the portal?
Only if they apply to you. E-invoicing depends on your aggregate turnover, and e-way bills on the value and movement of goods. If your ERP already generates them, the portal simply shows the documents. If not, we can generate the IRN and e-way bill through a GST Suvidha Provider at dispatch. Your tax adviser should confirm which rules apply.
Can our field sales team take orders without network coverage?
Yes. The rep app stores outlets, price lists and the catalogue on the device, lets reps build orders offline and syncs them when a connection returns, with stock and credit checks at sync. We test on the budget Android phones field teams usually carry and design screens for quick one-handed entry in a shop.
Next step
Bring trade orders online
Tell us your ERP, how buyers order today and how pricing works. We will propose a portal-first or rep-app-first plan and an estimate.