The key points
- There are three different portals: customer reorder, dealer or distributor, and supplier. Decide which problem you have first.
- The portal is only as good as its ERP connection. Prices, stock and order status must come from the system of record.
- Off-the-shelf B2B commerce covers standard reordering well. Custom builds earn their cost on configured products, complex approvals or unusual pricing.
- Start with the questions your customer service team answers most, not with a feature list.
What does a manufacturing B2B portal actually do?
It moves the repetitive part of trade business out of the inbox. A buyer logs in, sees only the products and prices agreed for their account, places or repeats an order, and checks where it is without calling anyone.
Think about a maintenance buyer at a food plant who orders the same gaskets, belts and spares every few weeks. Today they email a part list, your inside sales rep re-keys it into the ERP, checks the price on the contract, replies with a confirmation, and two days later answers a phone call asking whether it shipped. None of that needs a person. A portal gives that buyer their own order history, a reorder button, the price their contract says, and a tracking status that updates itself.
Your people don't disappear from the process. They move to the work a portal can't do: technical questions, new applications, custom quotes and the accounts that need a relationship.
- Account-specific catalog and pricing, including contract and tiered prices
- Quick order by part number, CSV upload and saved reorder lists
- Order status, shipment tracking and backorder visibility from the ERP
- Invoices, statements, credit limits and payment on account
- Documents per product or order: datasheets, certificates of conformity, test reports, safety data sheets
- Quote requests for non-standard items, with the history kept in one place
Which type of portal do you need: customer, dealer or supplier?
The word portal covers three quite different systems, and mixing them up is the commonest reason a portal project stalls. Pick the one that matches the relationship causing the most manual work.
A customer reorder portal serves end buyers who already know what they want. A dealer or distributor portal serves resellers, who also need marketing assets, price lists to share with their own customers, warranty registration and sometimes lead sharing. A supplier portal faces the other way: your vendors confirm purchase orders, upload advance shipping notices and quality documents, and see forecasts. Many manufacturers eventually want two of these, but building all three at once usually means none is finished. The build-or-buy decision is worth making separately for each.
What is a supplier or vendor portal, and how is it different from a dealer portal?
A supplier portal, also called a vendor portal, is for the companies you buy from. It is the procurement side of the same idea: instead of chasing vendors by email, you publish purchase orders to a login and they confirm dates, send advance shipping notices, upload certificates and test reports, and see your forecast. A dealer or distributor portal is the sales side: your resellers log in to order stock at their price list and download sales material.
The difference matters because the data and the users are opposite. A dealer portal pushes your prices and stock out to buyers. A supplier portal pulls confirmations and documents in from vendors, and it writes them back to purchase orders and goods receipt in the ERP. Vendors often serve several customers, so keep their login simple: one purchase-order list, one upload, one confirm button.
Start with a supplier portal when late or incomplete paperwork is your bottleneck: missing certificates of conformity, unconfirmed delivery dates, or buyers spending the day on follow-up emails. Start with a dealer portal when your own sales and service desk is swamped. If you are unsure which one you need, the comparison table further down this page is the quickest way to tell, and a custom build only makes sense once you know which relationship to fix first.
Should you buy an off-the-shelf B2B platform or build a custom portal?
Buy first if your ordering is standard: fixed catalog, account price lists, payment terms and reorders. Build when your products are configured to order, your pricing rules live in spreadsheets nobody can explain, or your approval chains are unusual.
The commerce platforms have matured here. Shopify's help center lists native B2B features, including company accounts, B2B catalogs with fixed or adjusted prices, and payment terms, on its Basic, Grow, Advanced and Plus plans, with the feature set depending on the plan. Adobe Commerce B2B documents company accounts with buyer roles, customer-specific catalogs and pricing, negotiable quotes, requisition lists, purchase-order approval rules and pay on account. Many ERP vendors also sell a customer portal module of their own, which can be the shortest route if your ERP is already the source of truth for everything a buyer needs.
Custom work tends to pay off in three places. Products with rules, such as a pump sized from flow, head and fluid, or a cable assembly built from options. Pricing that depends on several factors at once, such as contract, volume, metal surcharge and freight zone. And processes the platforms model awkwardly, such as a dealer network with territory rules. Often the honest answer is a hybrid: a standard platform for the catalog and checkout, with custom pieces for the configurator or the ERP sync.
Why does the ERP connection decide whether the portal works?
Because buyers stop trusting a portal the first time it shows the wrong price or says in stock when it isn't. Every number a buyer acts on should come from the ERP or be refreshed from it on a known schedule.
Agree early which system owns what. Typically the ERP owns customers, prices, stock, orders and invoices, while the portal owns the buying experience and content such as images and datasheets. Then decide how fresh each piece must be. Order status can often sync every few minutes. A price shown at checkout usually needs to be checked live or within a short window. Stock for made-to-order lines may be better shown as a lead time than a quantity.
Older on-premise ERPs without a usable API are the hardest case. They can still be connected, through scheduled file exchanges or a small integration service, but plan more time for it and test it with real order data rather than a demo account.
What changes by country?
The portal's core is the same everywhere, but invoicing and tax rules shape what it must show and how documents are produced. In India, businesses above a turnover threshold must generate GST e-invoices through the government's Invoice Registration Portal, so the invoice a buyer downloads should be the registered one from your accounting or ERP system, not a copy the portal makes up. Many Indian manufacturers run Tally or a similar package, and the sync approach depends on which version and add-ons are in place.
In the EU and UK, buyers often expect product compliance documents such as declarations of conformity next to the product. In the US, tax exemption certificates and multi-state sales tax handling tend to be the B2B checkout headache. Check these with your accountant and compliance lead; this page describes common practice, not legal requirements for your business.
Customer, dealer and supplier portals compared
| Aspect | Customer reorder portal | Dealer or distributor portal | Supplier portal |
|---|---|---|---|
| Who logs in | End buyers, maintenance and procurement teams | Resellers and their sales staff | Your vendors and subcontractors |
| Main job | Reorder at contract prices and track orders | Order stock, get sales tools, register warranties | Confirm purchase orders, send shipping notices and quality documents |
| Key data from the ERP | Prices, stock, orders, invoices | Price lists, stock, orders, rebates | Purchase orders, forecasts, receipts |
| Typical first win | Fewer order-status calls and re-keyed emails | Faster dealer onboarding and fewer price queries | Fewer chasers about late or missing paperwork |
Before you scope a B2B portal
- Have you listed the ten requests customer service handles most often, and how many a portal could answer?
- Do you know which system owns prices, stock, orders and invoices?
- Can your ERP expose that data through an API, a connector or scheduled files?
- Have you decided which portal type comes first: customer, dealer or supplier?
- Have a few real customers agreed to try it and tell you what is missing?
- Is someone in your team responsible for product data and documents after launch?
Sources
Rules and guidance this answer relies on. Policies change, so check the current version before acting on it.