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Magento 1 Support & Custom Development for Deine Tür
About Deine Tür
Deine Tür has been producing and selling modern and classic doors in the DACH countries since 1947. They offer a broad product catalog with advanced configuration options to satisfy customer demands. Their business model combines traditional craftsmanship with a complex digital purchasing journey. As a leader in the construction materials sector, they prioritize accuracy across product specifications and logistics.
About the Project
Challenge
The company was using an outdated version of Magento (1.7), which was becoming difficult to maintain. With over 100,000 product variations, the standard system could not accurately track stock for every specific combination, like a specific handle paired with a specific wood type. It led to confusion about what was actually in the warehouse.
Logistics was another big problem. Shipping heavy doors and offering professional installation required manual work. This lack of automation in delivery time calculations and shipping costs for bulky items increased the risk of cart abandonment and customer dissatisfaction. The business needed to fix these issues and improve the user experience without the high cost and risk of moving to an entirely new platform.
Client
DEINE TÜRCountry
GermanyIndustry
Retail and interior designPlatform
Magento 1 (OpenMage)Services & notable features
- Magento 1.7 maintenance
- Migration to OpenMage
- “Montage” system development
- Checkout redesign with mobile-first flow
- Admin panel customization
Integrations
- VeeUze
- Freshchat
- Cobby
- Hotjar analytics tool
Solution
In 2012, when searching for ways to upgrade their website, Deine Tür found BelVG and asked us for help to strengthen their Magento Community Edition 1.7.0.2 platform. Together, we gradually started building a better, more optimized setup.
Here’s what we did:
- Platform Security: migrated the store to OpenMage to continue receiving security updates and remain stable without a full migration.
- Service Automation: built a “Montage” system that uses the customer’s ZIP code to show if professional installation is available in their area.
- Accurate Stock: created a custom module that tracks inventory for every possible product configuration via the API.
- Better Checkout: redesigned the checkout to support a mobile-first architecture with smart autofill, reducing cart abandonment.
- Data Sync: upgraded the API architecture to connect the webstore with the Warehouse Management System (WMS) in real-time, preventing overselling of complex SKUs.

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Managing Director,
Deine Tuer
Before OpenMage solutions
Before OpenMage migration, we enhanced the Magento Community Edition with the following features:
- Up-to-date client base system. We asked customers to provide their registration date and encouraged them to update their passwords via notifications if they had not done so recently.
- Optimized Delivery system. We implemented a feature to calculate shipping costs based on the delivery address.
- Financial Functionality. We set up PayPal Plus as the payment gateway, added shipping cost calculations, and ensured compatibility with installed extensions and the Cobby management system.
- Marketing. We integrated Hotjar into the Deine Tür website and used DoubleClick for better ad organization and inventory sales.
The team also became familiar with the project, which enabled us to develop a plan for further enhancements without migrating to Magento 2.
Migration to OpenMage
OpenMage is a community-driven continuation of Magento 1 that provides ongoing security patches and compatibility updates. It allows businesses to extend the life of existing Magento stores, avoid costly migrations, and reduce the risks of using unsupported software.
With OpenMage, Deine Tür kept the setup their team was already comfortable with, but gained the security they needed to keep things running smoothly. We created a straightforward switch without downtime or disruption, and gave the client a solid base to keep growing on without starting from scratch.
After the platform was stabilized on OpenMage, Deine Tür continued partnering with BelVG to address the complexities of selling construction materials online.
Location-Based Installation (Montage) System
Many customers want to buy a door and have it installed by a professional. However, Deine Tür only has installation teams in certain regions. Without a way to verify service availability during the shopping process, customers might purchase services the company cannot fulfill, leading to refunds and logistical headaches.
We developed a custom Montage Products System to solve this logistical challenge. The system uses ZIP-code filtering to automatically check the customer’s location against service availability. If the service is available, a “Montage pop-up” calculates real-time rates based on the delivery point and the specific “Montage” category.
The system tracks service options and installation fees, clearly showing them to customers from product viewing to purchase completion. It facilitates a transition between online purchases and in-person services.
Dynamic Delivery Intelligence (DDI)
Different parts of the door might take different amounts of time to manufacture. When customers select specific hardware or custom finishes, they are often unsure when their order will arrive. This uncertainty creates a major barrier to conversion.
That is why DDI was one of the most valuable features for influencing customers’ trust. The functionality provides real-time calculations on the product page. It identifies the component with the longest production time and combines this with “Dummy Shipping” logic. This logic estimates transit times and costs based on the shipment’s dimensional weight and the customer’s geographical zone.
Every product page features a detailed configurator that allows customers to select specific hardware and components. The system quickly calculates the maximum production time for the selected items. As a result, customers receive a dependable delivery window and accurate shipping costs upfront, which significantly boosts purchase confidence.
Granular Product Option Inventory
Standard inventory systems typically track one product at a time, which is a problem for door manufacturers that offer numerous variations in materials, sizes, and finishes. If a website only states “10 doors in stock” without specifying the options, customers might order a sold-out variant. It leads to canceled orders and buyers’ mistrust of the website’s information.
The Belvg team built a custom Granular Product Option Inventory module to solve this. This custom module tracks stock for each specific configuration. Instead of just saying “10 doors in stock,” the system shows exact availability, such as “5 doors with chrome handles and 5 doors with brass handles.”
This system uses an API to connect with inventory management software in real time. As a result, customers can see accurate stock information, reducing guesswork and boosting their confidence in the brand.
Payment Flexibility & Checkout Optimization
The DACH market has very specific payment preferences, including invoice and installment payments. If a store doesn’t offer these, or if the checkout is too slow, the customer may leave.
We updated the payment system to include:
- SEPA Direct Debit
- special RDT payment option to give customers even more choices
- Riverty (which used to be Afterpay)
- easy “Buy Now, Pay Later” option.
The checkout itself was redesigned with a mobile-first approach. We optimized it for different screen sizes, simplified instructions, and added smart autofill for addresses. The “Review” step now clearly shows totals, discounts, and order details.
These changes make the buying process more reliable and straightforward.
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VeeUze Room Visualizer Integration
It is hard for people to imagine how a new door will look in their home from a small photo. To bridge the gap between imagination and reality, we integrated the VeeUze tool. It is a virtual room where users can see how the door and flooring match. In more detail:
- Virtual Room Staging. Customers can visualize flooring and door products in a virtual environment to make informed purchasing decisions.
- Seamless Product Data. The product listings synchronize perfectly with VeeUze, so the visualizer reflects real inventory and specifications.
- Integrated Support. We connected Freshchat to the VeeUze pop-up, enabling support managers to provide real-time assistance while customers are visualizing products.
This feature not only helps customers make better decisions but also increases website engagement and improves trustworthiness in search engine results.
Enhanced User Experience & Logistics
A catalog of doors needs effective tools to help customers find what they need and know when it will arrive. It is also important for the website to feel consistent with the offer. So, to cover these needs, we implemented small UX and UI tweaks:
- Advanced Filtering. BelVG upgraded the filter system to allow customers to search through thousands of SKUs by specific door attributes. This system links directly to the Warehouse Management System (WMS), so customers can view real-time inventory and see only available items.
- Interactive Wishlist. We introduced a modern Wishlist page with drag-and-drop functionality. So, the customers can easily organize potential purchases for renovation projects.
- Dynamic Promotional Badge System. The feature lets the marketing team highlight specific items, such as “Best Sellers” or “Sale” products, to grab the customer’s attention.
- Easier navigation. We overhauled the design of filters and breadcrumbs, making it much easier for users to find what they need on mobile screens.
These are important tweaks that simplify the user journey and make the shopping experience more comfortable and intuitive.
Admin Workflow and API Modernization
Efficiency for the store staff is just as critical as the customer experience. Managing 100,000 variations manually is an impossible task that invites human error. To help Deine Tür avoid such errors, we customized the Magento Admin panel with grid editing capabilities and “Custom Options Observers”. These features allow staff to update specifications without opening individual product pages.
On the technical side, we refined the Sales Order and Product Inventory API endpoints to ensure near-real-time synchronization with the client’s ERP. Our team implemented specific API logic for handling “Prepayment articles” and developed a custom Product ID generation system to align with the client’s internal cataloging standards. The Stock Product Management API was upgraded to prevent overselling, ensuring that the digital inventory matches the physical inventory in the warehouse.
Successful Scaling
The platform easily handles over 100,000 product models and supports an annual revenue of €13.8 million.
Cost Savings
By choosing OpenMage, the company saved significant time and cost compared with a full platform migration.
Higher Confidence
Real-time delivery dates and stock tracking have increased customer confidence, leading to better sales and fewer support questions.



