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FIXED.zone: A Shopify store free of technical debt, SAP migration without downtime
0 +ItemsStore catalog size.0 hCapacity savedManual work saved for the client every month.0 %Without downtimeNo downtime during the SAP migration.About the project
FIXED.zone is a Czech company with more than 20 years of history. It designs, manufactures, and distributes accessories for phones, tablets, and smart devices under its own FIXED brand. The company also distributes international brands and is publicly traded on the Prague Stock Exchange.
Its Shopify-based D2C store is a key sales channel, one that lets the team combine out-of-the-box solutions with custom development as needed.
Over time, working with the previous vendor had exposed problems across several areas: unstable project management, with four different project managers rotating through the account in a single year; an unsystematic approach to requests that created complications further down the line; and a growing number of requests the vendor deemed difficult or impossible to deliver.
On top of that, the company was planning a move to a new SAP ERP system and had serious doubts about whether the previous vendor could even handle that integration.
Challenges
- Technical debt: the existing Shopify setup prevented the client from making full use of the platform and complicated every new change.
- A planned SAP migration: a mission-critical integration requiring a deep understanding of the existing system. Any failure would mean downtime with a direct impact on customers — and on the client’s business.
- A team stuck in day-to-day operations: manual, repetitive steps in the order process were consuming capacity that should have gone toward growing the D2C channel.
- Low confidence in the existing setup: the client couldn’t tell what in the system was intentional and what was a patch. Without that clarity, safely moving development forward wasn’t possible.
Our role
- Analyzed the existing Shopify instance and identified problem areas
- Stabilized the store, then continued its development
- Prepared and delivered the integration with the new SAP ERP system
- Project management
Argo22 took ownership of the entire project, from analyzing the current state through to delivering the SAP integration and going live. This wasn’t a matter of picking off individual tickets. It was an end-to-end partnership.
Solution and approach
Rather than jumping straight into development, we first mapped the existing store: what worked as intended, what was a patch, and what was causing side effects with every change.
- Shopify audit: mapping intentional solutions against ad hoc patches
- Prioritization: what needed fixing before the migration, what could wait, and what should come only after stabilization
- Technical debt cleanup: removing the layers blocking further development
- SAP integration: design, implementation, testing, and deployment
- Template-level development: a custom Shopify extension adding ERP data to customer accounts (internal order numbers, document access, and more)
- Continuous documentation: every step recorded, so the system never became a black box
Beyond the SAP integration, the project involved extensive work at the Shopify template level: multilingual content, product data localization, and load-time optimization for a catalog of more than 5,000 products. The focus throughout was on performance, SEO indexing, and long-term maintainability.
The analysis phase initially looked like it was slowing things down. In hindsight, the client points to it as the main reason the migration went off without a hitch.
The project required coordinating three parties (Argo22, FIXED.zone, and the SAP vendor), which put real demands on project management and ongoing communication. Without that, the migration simply wouldn’t have been possible.
List of technologies
ShopifyLiquid
TypeScript
JavascriptHTMLCSSGraphQL
Node.js
Github
Results and impact
The project delivered a stable store that lets the client focus on growing its D2C channel.
- Freed-up capacity for D2C growth. After stabilization, FIXED.zone launched new marketing campaigns to raise the store's visibility. Order volume continues to grow steadily.
- SAP migration without downtime. The move to SAP was invisible to customers. Consistent experience, no outages, nothing customers would ever notice.
- No vendor lock-in. The client has full documentation and complete control over the system.
- 30 hours of manual work saved every month. Removing ad hoc fixes and automating manual steps freed up capacity on the internal team. Time that used to go into repetitive operations is now available for growth.
Key takeaways
- Analysis before development is an investment, not a delay. Time spent understanding the original system pays off in less rework, cleaner code, and smoother execution of demanding phases like an ERP migration.
- Documentation is the shared language between the client, external vendors, and our team. It gives everyone a single source of truth that multiple teams can build on.
- Technical debt compounds. Every patch adds a layer that makes the next request harder to work around. The longer it's ignored, the bigger the fix that's eventually needed.
- ERP migrations shouldn't be an afterthought. Planning for one from day one is what makes a downtime-free migration possible.
- Shopify can handle enterprise-level complexity. Custom extensions, a large catalog, and deep ERP integrations show the platform scales even in cases that usually call for custom-built solutions.
Working with Argo22 showed us just how big the gap can be between a quick ‘ad hoc’ fix and a genuinely well-thought-out systematic approach. Thanks to their thorough analysis and ability to think in terms of the bigger picture, we managed to stabilize our D2C setup, successfully complete the move to a new ERP system, and simplify our internal processes along the way. We also value their highly professional project management and open communication, which kept the whole project running smoothly with zero negative impact on our customers.ProjectsCollaboration with real results
From the first idea to launch. Together with clients, we create digital solutions that make sense, work in practice, and advance the world of technology. -
E.ON Propojeno: A digital platform that makes electricity sharing simple in the Czech Republic
0monthsto Minimum Viable Product0 +integrationsinternal/external systems (SAP, EDC, DMS, etc.)0 .platformenabling direct connections between people who want to share electricity in CzechiaAbout the project
- Innovative digital platform for electricity sharing
- Easy sharing of generated electricity with point of delivery
- A solid foundation for further market development
Electricity sharing has only recently become possible in the Czech Republic. New legislation enables households and businesses, such as owners of rooftop solar PV, to share surplus electricity with selected consumption points in near real time.
E.ON was looking for a delivery partner capable of building a production-grade digital product quickly and integrating it with a complex ecosystem of internal and external systems.
Challenges
Electricity sharing entered the market without established processes, technical standards and user expectations. The solution had to translate the entire concept into a functional and understandable digital form. Key systems were at varying levels of technical maturity and often without a standard API. It was necessary to analyze integration options, define integration criteria and design a sustainable integration approach.
- A new market with low user awareness
- Incomplete infrastructure and limited APIs
- Fast time-to-market
- Enterprise integrations and operating model
Speed was also essential. The MVP had to be created within a fixed deadline so that E.ON could actively open the new market and start acquiring its first customers. The project required the design and alignment of new processes across the organization, from data work to administration to platform operation. It was not just about developing an application, but about creating a functional operating model.
Our role
Argo22 delivered the product end-to-end. From discovery and business analysis through UX/UI design and user testing, to web development and enterprise integrations.
We provided:
- Product discovery and MVP scoping
- Business analysis and process design
- UX/UI design aligned with E.ON’s evolving brand
- Prototyping and user research/testing
- Web application development
- Integrations with key internal and external systems (including systems without standard APIs)
- UAT support and launch readiness
Solution
- Digital electricity sharing platform
- Connecting the producer and the consumer
- Automation of administration and processes
- Integration into key systems
- Documentation as a "single source of truth"
- A scalable foundation for growth
E.ON Propojeno is an innovative web platform, the first of its kind in the Czech Republic. It simplifies the entire process of electricity sharing and completes the missing “customer layer” above the technical infrastructure of the market.
The key added value is the automation of steps that would otherwise entail a significant administrative burden. The connection was built from the beginning on integrations with internal and external systems (e.g. SAP, EDC, DMS, etc.). The delivery included continuously maintained documentation that unified the tasks across teams and minimized scope creep and communication noise.
The platform was designed from the beginning to handle the gradual expansion of the number of users, the involvement of other entities, and the future development of functionalities in connection with the development of the electricity sharing market.
Approach
- Discovery & MVP framing
- UX/UI & early validation
- Iterative delivery
- UAT & launch readiness
Together with the client, we defined a product strategy, key scenarios and a minimum scope that would allow for rapid validation of the new market.
During the first two months, alpha versions and prototypes were created, which underwent UX testing and set the direction for further development. This took place in sprints with continuous alignment of the product, design and technology teams and parallel preparation of integrations to key systems.
The solution was prepared for verification in a real environment, including setting up processes for long-term operation and further development of the platform.
Results & impact
Within 6 months, we delivered an MVP of a digital platform that enabled E.ON to enter the new electricity sharing market with a functional and scalable product.
- Fast time-to-market: MVP in production in 6 months (alpha version after 2 months).
- Scalable foundation for development: the solution is ready for further expansion of functions and a growing number of users.
- Connection to the E.ON ecosystem and other services: 9 integrations implemented to ensure operational functionality.
- Better customer experience: the complex process of electricity sharing was converted into a clear digital gateway.
- A result that changes the energy market: we delivered the first platform of its kind on the Czech market with the ambition of further growth and expansion.
Technologies
The platform is built on open-source technologies within E.ON’s infrastructure, avoiding vendor lock-in. A key engineering focus was designing a robust integration layer and connecting systems with varying API maturity.
List of technologies
Next.js
React
TypeScript Prisma
PostgreSQL
Kubernetes
Key takeaways
- Agile delivery is the fastest path to MVP when scope and priorities are actively managed.
- Early user testing reduces product risk and improves adoption.
- Integrations often define the critical path – strong cross-team coordination is essential.
- Living documentation speeds delivery by aligning stakeholders and reducing rework.
From the outset, our cooperation with Argo22 was built on a genuine partnership and a shared team approach. Thanks to open communication and effective risk management, we were able to deliver a fully functional solution with clear control over both the process and the outcome.ProjectsCollaboration with real results
From the first idea to launch. Together with clients, we create digital solutions that make sense, work in practice, and advance the world of technology.Get in touch
Whether you have a specific project or just a concept, we’re here to discuss it with you.FIND USRadniční 133, 370 01 České Budějovice, CZCALL USEMAIL US
