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Home > Technology > Solving the Challenges of the Modern Retail Industry with SD-WAN

Solving the Challenges of the Modern Retail Industry with SD-WAN

Published by linker 5

Posted on December 3, 2020

7 min read

Last updated: January 21, 2026

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Three key benefits of SD-WAN can help retailers solve new and old challenges and prepare for an uncertain future

By John Tait, Global Managing Director, TNS Payments Market

As customer needs and preferences change, and as technologies disrupt formerly effective strategies, retailers are confronted by continuous challenges in the modern era.

But no year has been quite like 2020. Mandates ordering the public to stay at home crippled foot traffic earlier this year and, even when physical stores were able to open, social-distancing measures have limited the numbers of customers permitted indoors, while fears of the virus have driven others away.

With new and old challenges impacting the industry, it’s time to think differently. Retailers need to look closely at how technology can support their operations and their customers, secure customer payments and business data, and help them adopt the digital strategies that will be vital in an uncertain future.

One network technology, software-defined wide-area networking (SD-WAN), can offer a host of benefits for retail businesses. At its core, SD-WAN is a way of simplifying the management and operation of a network by decoupling the networking hardware from the way it is controlled. This gives a business the ability to manage network traffic to and from data centres and retail sites or offices, which alleviates network congestion and keeps the network from becoming overloaded. It can be layered on top of any connectivity solution to securely connect users with applications, including apps in the cloud.

But that’s not all it is. Here’s how it can help retailers navigate an ever-changing business and economic climate.

It can support new strategies and modernises operations

Many retailers will have heard the term ‘digital transformation’ and their stores may even be working towards it. The basic premise is that all businesses can boost their overall agility, flexibility, and customer service experience by adopting digital initiatives and technology-based strategies.

For retailers, this can mean creating online storefronts to connect with customers, instead of face-to-face interactions, with cloud-supported e-commerce options and curb-side pick-up options for pandemic-friendly buying experiences. Alternatively, it could mean adding chatbots and customer data management solutions to a website for ways to support customers with a leaner staff. Or implementing contactless mobile payment options for the first time, supported by secure, high-speed connectivity. It can even be as simple as adding a separate Wi-Fi network for customers to use then they’re in a store.

The possibilities for digital transformation are practically endless within the retail space — it all comes down to how daring retailers want to be and how much tech they want to add. But even the more accessible parts of digital transformation incorporate devices and apps that can strain traditional networks and add new levels of complexity around network management. Even simply adding digital displays to stream promotional videos in a store can stretch a network’s bandwidth.

That’s where SD-WAN can come in. Because it can improve network uptime, performance and redundancy, it gives a business the ability to support new strategies and add the latest cloud-based apps while also prioritising business-critical applications like payments. In other words, retailers don’t have to worry that their payments terminal might slow or go down just because they’ve added in-store digital features that also require connectivity, such as customer-facing tablets that let them place orders or view different options, or customer Wi-Fi.

For shops that have shifted to more of an e-commerce/delivery/pick-up strategy, SD-WAN supports secure digital payments while connecting an inventory management system to a payments system and online/mobile ordering portal, so customers can have a smooth experience, and their data remains protected.

It helps retailers embrace and secure the cloud

The cloud is a big part of digital transformation. Retailers’ own operations, like their databases or servers, might not yet be based in the cloud, but they almost certainly use services that are. Tools such as Office 365 and Google Drive, or payments apps like Square are all cloud-based.

Even if retailers aren’t there yet, their vendors are most likely going to push them there. Plus, cloud isn’t just good for the vendors they use; it’s good for retail businesses, too. Many of the aforementioned digital services like e-commerce and chatbots need the cloud to run optimally. Once they’re in the cloud, retail organisation will have a world of possibilities, but to adopt cloud, they need to solve any connectivity issues they may have.

While cloud services allow business-critical applications to be accessed from anywhere, it does add security concerns. A recent IDG survey found 98% of businesses surveyed said securing applications, data and infrastructure in the cloud is “very” or “somewhat” challenging. Almost all of the organisations that IDG surveyed (95%) feel that their current security infrastructure hinders their ability to protect data — including payments data — as it moves to and from the cloud.

SD-WAN allows retailers to lock down cloud access at a branch or location by securing direct access to the public cloud and software-as-a-service (SaaS) apps like Office 365. SD-WAN also adds the ability to boost capacity during times of high network traffic, or failover to a broadband or LTE network. Retailers can quickly deploy new cloud-based apps with secure, reliable internet connectivity.

It boosts security, including customer payments security

SD-WAN allows retailers to deliver alternative payment options such as self-service kiosks and mobile POS. For example, outdoor terminals can be used for restaurants serving patio diners, or tablets that allow staff to check out shoppers from anywhere in a store.

This flexibility regarding where and how payments can be processed is ideal for the consumer, but it can create cybersecurity risks because of more devices and more points of interaction to and from apps or internet breakout. No retailer wants to be featured in the next headline about data breaches or other cyberattacks. This means properly security controls, especially for payments, are critical.

SD-WAN gives retailers a way to securely connect all types of payments options — POS terminals, cash registers, e-commerce gateways, mobile devices, automated fuel dispenser (AFD) pay-at-the-pump systems and more, as well as any other devices and networks within a retail environment.

SD-WAN can also protect sensitive card data. Retailers should opt for best-in-class security protocols like next-generation stateful firewalls (NGFW) (including IPSEC VPN tunnels), anti-virus features, URL filtering and SSL packet inspection. Regulatory compliance with PCI DSS security credentials is, of course, also critical within a retail environment, and some SD-WAN solutions available today have been designed to incorporate PCI DSS requirements.

While SD-WAN does offer an upgraded, secure technology that can bolt on to another connectivity layer and reduce the complexity of network management, retailers that don’t have in-house IT staff may still be challenged to successfully implement one. Fully managed solutions remove the hands-on work while giving a business access to all of an SD-WAN’s capabilities. They also add an extra layer of security: with a provider actively monitoring threats and keeping an eye on the network peripherals — all the data going back and forth, and what devices are using them — retailers can keep their network, and their customers’ card data, locked down.

Solving existing and future Challenges

This year has challenging in many ways and surprises are likely to continue for the next year or so. This uncertain new reality is understandably unsettling for many retailers, but it’s also an opportunity to rethink the way they do business to ensure long-term survival and drive growth, even in a volatile environment.

Implementing an SD-WAN solution can help retailers support digital initiatives and new strategies, deploy and secure modern cloud applications, and secure payments data. With the option of a managed service provider behind the SD-WAN, stores can focus on boosting the customer experience and modernising retail operations instead of managing payments terminals or troubleshooting a network. This will save time and money at a time when everyone needs more of both.