An auto parts distributor with 35 employees, based in the Lousada–Paços de Ferreira corridor, decided to do away with its field sales force. Not because of cutbacks. Because its customers—workshops, small repairers, garages—no longer wanted visits. They wanted to place orders at night, on their phones, when they closed up. And they wanted the order to arrive the next day, with no paperwork, no phone calls, no errors in quantity or colour. The company had an ERP, it had stock. What it lacked was a door between the customer and that ERP. It built one. Since then, 78% of orders arrive with no sales contact. Cost-per-transaction fell by 43%.
This is not an article about digital transformation. It is an article about a mistake we see repeated: the belief that a B2B portal is a luxury, an add-on feature, something you tack on when there is spare budget. We believe it is a fundamental prioritisation error. A well-designed B2B portal is not a complement to the sales force—it is a change in the architecture of how selling works. In Portugal, where we have industrial and distribution companies still placing orders by telephone or email in 2025, it is an urgent change. And the market figures confirm it: only 53.7% of Portuguese companies used an ERP in 2025, and real-time data capture on the shop floor is still the exception. A B2B portal is the first step to connecting the customer to the ERP that most already have.
The hidden cost of the telephone
When a customer calls to place an order, what is happening? A salesperson or an administrative operator loses 7-12 minutes. They take notes. They repeat quantities. They confirm deadlines. Then someone validates it in the ERP. Then generates an order note. Then sends it by email or prints it. If the customer needs three orders a week, that is 30-40 minutes of weekly work, for that customer alone. Multiply by 50 customers. That is 25-33 hours a week spent on transactions the customer could do alone in two minutes.
But there is a cost no one measures. When the customer calls, they do not know the stock in real time. The operator checks the ERP. Says "we have 120 units". The customer asks for 150. That gets left pending. Then there is negotiation. Then there are partial orders. Then there are follow-ups. All of this is friction that the customer—had they direct access to the stock—would avoid on their own. We have observed that 30-40% of telephone orders have at least one iteration because the customer did not see what was actually available.
A B2B portal does not reduce the sales force. It redirects it. Off the telephone, into the strategic relationship with large customers.
Three scenarios where a portal changes the game
A garment manufacturer in the Vale do Ave works with seven subcontracting customers. Each places irregular orders—sometimes daily, sometimes weekly, sometimes in bursts of urgency. The manufacturer has an ERP with the raw-materials stock. The customers telephone. The answer is always "let me confirm"—because the ERP is on another machine, in another room, with another person. A B2B portal linked to the ERP tells the customer, in real time, "we have 340 metres of raw cotton, delivery in 5 working days". The customer confirms on their own. No intermediary. No delay.
A construction-materials distributor with 18 regional stores receives orders from small retailers. Each retailer has a credit limit. Each order needs to be validated against that limit. An operator does this manually. A B2B portal integrated with the ERP validates automatically: the customer sees "you can order up to 5,000 euros"; tries to order 7,000; the system refuses, proposes the 5,000 available. No intermediary. No wait.
An injection-moulding plastics factory works with 12 recurring customers. Each customer has 3-5 different references. Each reference has a price, a delivery date, a minimum quantity. When a new customer calls, the operator has to fetch all of this in the ERP, in scattered spreadsheets, in old emails. A B2B portal shows the customer, in a personalised catalogue, exactly what they can order, at what price, with what lead time. No confusion. No quotation errors.
Five years ago, we thought a B2B portal was a "nice-to-have" for companies with more than 200 employees. We were wrong. The tipping point is not the size of the company. It is the amount of repetitive transactions the customer makes. If a customer places more than 10 orders a month, a portal pays for itself in 4-6 months. If they place more than 50, it pays for itself in 6-8 weeks.
What a B2B portal is not
A B2B portal is not an e-commerce shop. It is not a retail website. It is not a pretty catalogue. It is an extension of the ERP. It is a screen that shows the customer what they can order (based on their history, their contractual relationship, their credit limit, the stock that exists), lets them place the order (no intermediary, no delay), and then sends that order directly to the ERP, ready for picking, ready for dispatch, ready for invoicing.
A B2B portal also does not replace the sales force. It replaces the administrative operator. The sales force—if the company has one—is freed to do what it should be doing: negotiating volumes, exploring new categories, building strategic relationships with large customers. Not taking down order notes for 240 euros.
What changes when the customer has access
When we implemented a B2B portal at a tools distributor in the north of Portugal, in 2021, the customer asked for a simple feature: to see the history of their last 20 orders. We thought it was a matter of convenience. In fact, it reduced by 35% the calls asking "how much should I order of this reference?" The customer saw the pattern of their own consumption. They ordered with more confidence. Less hesitation. Fewer follow-ups. This is a detail that the "B2B portal best practices" manuals do not mention: the customer's memory, when visible, is a friction reducer just as important as access to real-time stock.
In a well-built B2B portal, the customer also sees real delivery lead times. Not "5-7 working days". "Order today, dispatch tomorrow, arrival in Viseu within 48 hours." This is possible because the portal is linked to the ERP, which is linked to production planning and to the transport schedule. Real transparency. Real trust.
And there is a secondary effect that companies do not anticipate. When the customer places the order themselves, there is a different psychological responsibility. They saw the price. They saw the quantity. They confirmed. If they later say "no, this wasn't supposed to be 100 units", it is much easier for the company to say "you confirmed it on the portal". It significantly reduces returns due to "wrong order".
A B2B portal is a friction-reducing machine. Every friction it removes is a person-hour freed and an error avoided.
When it does not work
A B2B portal does not work if the ERP behind it does not have clean data. If the stock in the ERP is wrong, the customer sees wrong stock. If the prices in the ERP are not up to date, the customer sees out-of-date prices. This seems obvious. But we see companies trying to implement a B2B portal when their ERP still has 40% dirty data. It is like building a beautiful car with a faulty engine.
A B2B portal also does not work if the company is still making manual adjustments to orders after they enter the system. If the customer orders 100 units, the portal sends 100 to the ERP, but then someone in the warehouse calls to say "we only have 85, we'll dispatch 85 and the rest next week"—that is friction the portal did not eliminate, it merely relocated. The portal has to be the truth. There can be no manual negotiation afterwards.
And it does not work if the company does not train the customers. A portal is intuitive, but it is not automatic. If there is no email saying "here is your login, this is how it works, any questions call us", there are customers who keep calling because they are afraid to use it.
What to measure
Once a B2B portal is live, the company needs to measure three things. First: how many orders came through the portal versus telephone/email. Second: what is the average time between order (via the portal) and dispatch. Third: what is the rate of quantity or reference errors. If the portal is working well, the time between order and dispatch falls by 40-60% (because there is no manual revalidation), and the error rate drops to under 1%.
There is a fourth metric that is qualitative, but which we see consistently: customer satisfaction rises. Because the customer is no longer dependent on service hours. They can order at 1 in the morning. They can order on Saturday. They can order while they are in the car, on their way to their own customer. This metric does not appear on a spreadsheet, but it appears in a contract renewal with no price negotiation.
The investment and the return
A company with 50-150 employees, with an ERP already implemented, with 30-100 recurring customers, can have a functional B2B portal in 8-14 weeks. The cost depends on the complexity of the ERP and the customisation of the portal. In Portugal, for a mid-sized company, we are talking about 8,000 to 25,000 euros, plus 800-1,500 euros/month for maintenance and hosting.
If the company saves 25-35 hours of administrative work per week (which is conservative), that is 1,200-1,700 hours a year. At an average cost of 18-22 euros/hour (salary + overheads), that is 21,600 to 37,400 euros of annual savings. The investment pays for itself in 3-12 months. But there is a benefit that is not easy to calculate: a customer who orders on their own, without friction, is a customer who stays. The retention rate rises. And a retained customer is more profitable than a new one.
Productivity per hour worked in Portugal is around 67% of the EU average—one of the lowest figures in the EU. A B2B portal does not solve this on its own. But it is one of the first steps. Because it frees the team from repetitive transactions for tasks that really create value: negotiation, innovation, relationship. This is what a B2B portal does. It is not magic. It is architecture.
Frequently asked questions
What is a B2B portal and what is it for?
A B2B portal is an extension of the ERP that allows customers to place orders directly, without an intermediary. It shows stock in real time, validates credit limits automatically and sends the order straight to the picking and invoicing system. It eliminates phone calls, delays and quantity errors.
Does a B2B portal replace the sales force?
No. A B2B portal replaces the administrative operator who takes orders by telephone. The sales force is freed to negotiate volumes, explore new categories and build strategic relationships with large customers, instead of recording low-value orders.
From how many orders per month is a portal justified?
If a customer places more than 10 orders a month, the portal pays for itself in 4-6 months. If they place more than 50 orders a month, the return occurs in 6-8 weeks. The tipping point is not the size of the company, but the volume of repetitive transactions.
What is the hidden cost of receiving orders by telephone?
A telephone order consumes 7-12 minutes of work. With 50 customers placing three orders a week, that is 25-33 hours spent each week on transactions the customer would do in two minutes. In addition, 30-40% of telephone orders have iterations because the customer does not see the real stock.
Is a B2B portal the same as an e-commerce shop?
No. A B2B portal is not a pretty catalogue nor a retail shop. It is an extension of the ERP that shows the customer what they can order based on their history, credit limit and available stock. It sends the order directly to picking and invoicing, with no intermediary.
What benefit does the customer get from seeing the history of their orders?
Seeing the history of the last orders significantly reduces the calls asking "how much should I order of this reference?" The customer sees the pattern of their own consumption and orders with more confidence and less hesitation, eliminating unnecessary follow-ups.
Does a B2B portal work for small companies?
Yes. The tipping point is not the size of the company, but the volume of repetitive transactions. A small distributor with 35 employees was able to do away with its field sales force because 78% of orders came to arrive with no sales contact, and cost-per-transaction fell by 43%.