27 OctMany distributors, wholesalers, and manufacturers in Lebanon and the Gulf still take trade orders by phone, WhatsApp messages, and spreadsheets. B2B portal development means building a secure, logged-in website or app where your business customers can see their own prices, place and repeat orders, check stock and statements, and download invoices without waiting for someone in your office to answer.
This guide covers what a B2B ordering portal should include, how it connects to your ERP, when an off-the-shelf option is enough, the e-invoicing rules that matter in Saudi Arabia and the UAE, and a practical build plan for 2026.
A B2B portal is a private storefront and self-service area for trade customers: shops, pharmacies, restaurants, contractors, or resellers that buy from you regularly. Unlike a public online store, every customer logs in and sees a catalog, price list, and payment terms agreed with them. It is different from an internal tool for your own staff (our post on custom internal tools covers those) and from a consumer store, which our e-commerce platform guide compares.
Typical users are distributors and wholesalers serving many retail outlets, manufacturers selling to dealers across Lebanon and the GCC, and multi-branch groups whose branches order from a central warehouse.
Start with ordering, pricing, and order status; returns, quotes, and loyalty-style rebates can follow in a later phase.
A B2B portal is only as reliable as its data. Products, prices, stock, customer balances, and invoices usually live in an ERP or accounting system, so the portal should read from it and write orders back instead of keeping a second copy that drifts out of date. Decide which system owns each piece of data and how often it syncs.
If you run Odoo, its built-in portal already lets invited customers view their quotations, sales orders, and invoices, and a custom ordering front end can sit on top of it. Our comparison of ERP vs custom software explains this “ERP core, custom edges” approach, and our guide to API integration in Lebanon covers connecting payments, ERP, and messaging. For order updates by WhatsApp, see WhatsApp ERP integration.
You do not always need a full custom build:
A common middle path is a custom portal connected to your existing ERP, so you keep proven accounting while customers get an ordering flow built around how they buy.
If your portal issues invoices to business customers in the Gulf, plan for e-invoicing from the start:
In practice, your ERP or e-invoicing provider usually generates the invoice and the portal only displays it. Check current rules with each authority before launch.
Trade buyers in the region often order in Arabic, so plan a right-to-left layout and translated product names, not only translated menus; our guide to bilingual Arabic and English websites covers the details. Many shop owners reorder from a phone, so keep the reorder flow short.
Payment methods vary: bank transfer, cash on delivery, cheques collected by reps, and card payments. If you want online payment, our guide to payment gateways in Lebanon explains the options.
Customers must never see each other’s prices or balances. Enforce access per company and user, and log who placed or approved each order. Lebanon’s Law No. 81 of 2018 on electronic transactions and personal data, Saudi Arabia’s Personal Data Protection Law, and the UAE’s Federal Decree-Law No. 45 of 2021 set rules on consent, purpose, and security for personal data. This is general information, not legal advice.
We don’t quote fixed prices without a scope. The main factors are the number of products and pricing rules, ERP integration depth, languages, approval workflows, a sales rep mobile app, and e-invoicing requirements. For general budgeting, see our guide to custom software development cost in Lebanon.
Step To Media builds websites, mobile apps, and custom software from Mkalles for businesses in Lebanon and the Gulf. Explore our custom software development, website development, and mobile app development services. You can also learn more about us as a software and web development company in Lebanon, or see how we work as a software development agency in Lebanon. Planning a trade ordering portal? Contact us with how your customers order today and the ERP or accounting system you use.
A B2B portal is a private, logged-in website or app where business customers see their own catalog, prices, and payment terms, place and repeat orders, and download invoices and statements.
Usually, yes. If your ERP has an API, products, prices, stock, and balances can sync to the portal and orders can flow back automatically. Odoo, for example, also includes a customer portal for viewing quotations, orders, and invoices.
Shopify B2B suits simpler catalogs with standard terms. A custom build makes more sense for complex pricing, approval workflows, several markets, offline sales rep apps, or tight integration with a local ERP.
If it issues invoices to Gulf business customers, yes. Saudi Arabia’s ZATCA rolls out Fatoora integration in waves, and UAE e-invoicing for B2B transactions starts on 1 January 2027 for businesses with revenue of AED 50 million or more.
A responsive web portal is often enough. A mobile app is worth it when sales reps take orders in the field or customers reorder often from phones.

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