From economic uncertainty and rapidly evolving technologies to shifting customer expectations, there are many challenges facing modern retailers. And while many of these challenges are unpredictable, there are fundamental issues that retailers should address to protect their eCommerce business and maintain revenue growth.
Below, we’re covering these hidden costs that are breaking your eCommerce tech stack along with solutions to address them.
Too Many Integrations
Every eCommerce tech stack has multiple integrations that make the business work. This typically includes a mix of the following:
- ERP (Enterprise Resource Planning)
- CRM (Customer Relationship Management)
- PIM (Product Information Management)
- OMS (Order Management System)
- Payment gateways
- Tax engines
- Inventory systems
- Loyalty system
- Personalization tools
Vendor sprawl can be a significant source of technical debt in enterprise commerce. As retailers add point solutions over time, their tech stack grows in complexity, maintenance costs, and data consistency challenges.
If third-party integrations are not properly set up or are not compatible with your existing tech stack, this can create numerous issues for your eCommerce business. For example, these integrations could slow your site down, causing abandoned carts and lost sales. Or, they could require additional upkeep that pulls your team away from other work, making prioritization difficult.
To address this complexity, retailers should conduct regular audits of their full eCommerce tech stack to identify weak points and opportunities to streamline processes.
Legacy Systems
If your eCommerce site is built on a legacy platform or with an outdated database or brittle APIs, anything built on top of it is likely to break down at some point. Developing a website on top of an outdated system is likely to cost your team additional time and resources in the future. Legacy platforms often lack the native capabilities modern eCommerce requires, such as composable architecture, real-time inventory, or flexible content management, forcing development teams to build workarounds that introduce instability. These workarounds accumulate over time, making the codebase increasingly difficult to maintain and extend.
Retailers facing this challenge should evaluate whether incremental modernization (such as wrapping legacy APIs in a modern service layer) is viable, or whether a phased replatforming effort is the more cost-effective long-term path. The key is developing a clear total cost of ownership (TCO) analysis that accounts not just for migration costs, but for the ongoing hidden costs of maintaining outdated infrastructure.
Scale and Performance Demands
As your eCommerce business scales, you will likely encounter the following increased performance demands:
- Large product catalogs – Managing tens or hundreds of thousands of SKUs requires robust indexing, search optimization, and caching strategies to maintain fast page loads.
- Traffic spikes – Sudden surges from marketing campaigns, viral moments, or flash sales can overwhelm servers not designed for elastic scaling.
- Seasonal events – Peak periods like Black Friday, Cyber Monday, and holiday shopping require proactive capacity planning and load testing well in advance.
- Multi-region users – Serving a geographically distributed customer base introduces latency challenges that require CDN strategies, regional hosting, and localized content delivery.
Your eCommerce platform plays a major role in meeting these demands. The right platform should be able to handle fluctuations in traffic and seasonal changes without missing a beat. It should also make managing a large number of SKUs and meeting multi-regional needs seamless for your team. When evaluating your eCommerce platform, be sure to include these demands in the process.
Omnichannel Requirements
Modern enterprise retailers are no longer managing a single digital storefront. They must deliver consistent, connected experiences across an expanding set of touchpoints:
- Physical stores – Digital inventory visibility, in-store kiosks, and associate-facing tools must sync seamlessly with the online channel.
- BOPIS and curbside pickup – Buy Online, Pick Up in Store (BOPIS) and curbside fulfillment require real-time inventory accuracy and tight coordination between eCommerce and store operations.
- Marketplace channels – Selling on Amazon, Walmart, or other third-party marketplaces requires feed management, synchronized inventory, and consistent brand presentation.
- Mobile app – Native mobile apps must maintain feature parity with the web experience while leveraging device-specific capabilities like push notifications and biometric authentication.
- Call center integration – Customer service agents need full visibility into online orders, returns, and account history to deliver consistent support across channels.
- Reverse logistics – Returns management is a growing cost and customer satisfaction driver. eCommerce platforms must support flexible return policies, automated RMA workflows, and inventory reintegration.
Investing in scalable, omnichannel-ready architecture is critical to long-term commerce growth. This applies to not only your eCommerce platform, but most other software that you may layer in your tech stack.
Large Stakeholder Groups
Large stakeholder groups across your eCommerce business often mean many competing interests that can be difficult to manage. Your IT and operations teams may be most focused on eCommerce solutions that are simple to implement and don’t require costly ongoing maintenance. Your eCommerce and marketing teams might be more concerned with the functionality of the solution and how user-friendly it is. Your legal team is likely more focused on potential risks associated with new solutions.
To align these groups, it may be beneficial to establish a cross-functional steering committee, clearly define decision rates, and implement structured change management processes. From eCommerce platform selection to implementation and ongoing maintenance, it is critical for teams to get on the same page to avoid issues down the road.
Security and Compliance Burdens
Enterprise retailers must operate under complex regulatory and security obligations that directly impact eCommerce architecture, development practices, and operational processes. Key areas of concern include:
- PCI DSS Compliance – Any retailer that accepts credit card payments must adhere to Payment Card Industry Data Security Standards. This affects everything from how payment data is transmitted and stored to the security posture of the broader hosting environment. Non-compliance can result in significant fines and the loss of the ability to accept card payments.
- Privacy regulations – Privacy laws such as GDPR (in Europe), CCPA (in California), and a growing patchwork of state-level regulations impose strict requirements on how customer data is collected, stored, used, and deleted. Retailers operating across multiple geographies must design their data infrastructure to support regional consent management and data residency requirements.
- WCAG/ADA accessibility – eCommerce sites must meet Web Content Accessibility Guidelines to ensure equitable access for users with disabilities. Accessibility failures expose retailers to litigation risk and exclude a significant segment of potential customers. Accessibility must be built into the development process, not added as an afterthought.
- Fraud prevention – Enterprise retailers are high-value targets for payment fraud, account takeover attacks, and bot-driven inventory manipulation. Robust fraud prevention requires layered controls including device fingerprinting, behavioral analytics, and real-time transaction scoring, all of which add architectural complexity.
- Data governance – As data volumes grow and regulations multiply, retailers must establish clear policies for data classification, retention, access control, and lineage. Without strong data governance, compliance audits become burdensome and breach response becomes chaotic.
High Maintenance Costs
ECommerce platforms and third-party integrations can often carry significant ongoing costs that may be underestimated during the initial selection and budgeting process.
- Platform licensing and infrastructure – SaaS platforms may increase pricing as transaction volume or feature usage grows. Self-hosted solutions may require dedicated infrastructure investment and the internal expertise to manage it.
- Add-on and integration costs – As business needs evolve, additional modules, plugins, or third-party integrations are frequently required. Each addition introduces new licensing costs, potential compatibility issues, and ongoing maintenance obligations.
- Development and customization – Out-of-the-box functionality rarely meets the full requirements of an enterprise retailer. Custom development requires ongoing investment to maintain compatibility with platform updates.
- Technical debt remediation – Rushed implementations and accumulated workarounds create technical debt that must eventually be paid down. Deferred maintenance compounds over time, ultimately costing far more than proactive investment would have.
- Talent and expertise – Skilled eCommerce platform developers, solution architects, and digital experience specialists command premium salaries. Reliance on a small number of internal experts creates organizational risk if those individuals depart.
Retailers can mitigate maintenance costs by establishing a formal platform governance model and prioritizing composable or API-first architectures. Understanding the true total cost of ownership upfront is also essential for sustainable eCommerce investment.
Balancing Flexibility vs. Stability
One challenge facing retailers is the tradeoff between platform flexibility and operational stability. Marketing and merchandising teams prioritize the ability to move quickly without requiring developer involvement. Meanwhile, IT and operations teams prioritize stability and risk mitigation. Platforms that optimize entirely for one often sacrifice the other, making it difficult to enforce governance or creating bottlenecks that slow the business down.
The most successful enterprise retailers invest in platform architecture that separates concerns, enabling non-technical teams to control content and personalization within guardrails, while reserving infrastructure and code-level changes for governed release processes. Composable and headless commerce architectures and modern content management systems can enable this model at scale.
Final Thoughts
The challenges facing online retailers are complex and largely interconnected. Integration complexity, legacy infrastructure, performance demands, and more place pressure on commerce teams and compound one another.
Addressing these challenges requires clarity on platform direction and eCommerce infrastructure as well as organizational alignment around priorities. Your eCommerce tech stack is a long-term business investment that requires a fully realized strategy. If you’re ready to stop battling your tech and start seeing real revenue growth, contact Virid to get started.
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