01 / WEBSHOP

Webshop development,custom store buildswith a business mindset.

WShop · WooCommerce · Magento 2 · UNAS · OpenCart · PrestaShopRequest a quote →
02 / WHO IT IS FOR

Who is it for and when?


  • With daily order volume, stable operation is a business question
  • Speed and Google rankings bring in traffic
  • You plan in multi-year cycles, not for one season
  • You want to extend later: integrations, automations
  • You are looking for a system that grows with the company
03 / RESULTS
11

webshops live and running

The numbers speak for themselves

PLATFORM
Magento 2WordPress WooCommercePHPOpenCartPrestaShop
Quality with no compromises, engineered to last • Quality with no compromises, engineered to last • Quality with no compromises, engineered to last • Quality with no compromises, engineered to last •
Development built on real experience, with measurable results • Development built on real experience, with measurable results • Development built on real experience, with measurable results • Development built on real experience, with measurable results •

Webshop development and custom online stores

Webshop development is no longer decided by which template looks nicer. Behind a working online store there are business processes: stock, pricing, invoicing, shipping, measurement and legal compliance. These determine which system is right for you. WebPot DEV works platform-independently: we develop on our own WShop system, on WooCommerce and on Magento 2, so the question is not what we can sell you but which solution earns its price back at your volume. We currently run 11 live webshops on five different platforms.

What does webshop development mean with us?

A webshop build with us always starts by mapping the processes, not with the design. We go through how an order comes about at your company: where the product data comes from, who sets the price, what happens in the warehouse, how the invoice goes out, when the customer gets a notification. That is what shows whether a hosted platform is enough, whether WooCommerce will do, or whether you really need custom webshop development.

The technical part comes after that: data model and attribute structure, category structure, checkout flow, payment and courier integrations, invoicing and stock connections, measurement and feeds. Speed and a search-friendly structure are not an SEO package bolted on afterwards but part of the development: server-side rendering, image optimisation (WebP/AVIF) and caching are built into our own WShop system.

New project

A webshop built from scratch

A full rollout: process survey, platform choice, data model, branding, checkout, integrations and go-live. The first version is not the final store but the first measurable one.

Custom needs

Custom webshop development

When your business logic does not fit a hosted platform: custom pricing, stock by the gram or the metre, bundle offers, reseller tiers, your own calculators, processes close to production.

Migration

Webshop migration

Moving from Shoprenter, Unas, PrestaShop, OpenCart or WooCommerce without data loss, with 301 redirects, so existing search rankings and link equity survive.

Takeover

Changing webshop developer

Taking over an inherited, undocumented code base: technical audit, risk list, version upgrade plan, then an orderly development process and transparent change tracking.

Speed

Webshop optimisation

A slow category page, weak Core Web Vitals, high cart abandonment: caching, query optimisation, images served from a CDN, server tuning on a dedicated VPS.

B2B

B2B webshop development

Per-partner price lists and discounts, minimum order quantity, credit limits, a quote request instead of a cart, multiple delivery addresses, stock and prices coming from an ERP.

Operations

Webshop maintenance

Security and version updates, backup checks, monitoring, prioritised bug fixing, so that a fault does not surface at the moment a customer cannot pay.

Measurement

Measurement, feeds, ads

GA4 server-side tracking, Enhanced Conversions, Google Shopping and price-comparison feeds, a Meta catalogue, so that ad spend is decided on real data, not on estimates.

A hosted platform or a custom webshop?

This is the most common question, and answered honestly it saves a lot of money. A hosted webshop (Shoprenter, Unas and the like) starts fast, has a predictable monthly fee and is a perfectly good choice up to a few hundred products with standard processes. Its limits start to hurt when you have to bend your processes to the system instead of the other way round: custom pricing, your own business logic, deeper integration, your own measurement.

Custom webshop development, by contrast, is a larger upfront investment; in return the system is built around your processes, the source code and the data are yours and there is no monthly fee per feature. It pays off when the webshop is the main revenue channel, when you work with thousands of products, several warehouses or complex pricing, or when the monthly fees and limits of a hosted platform already cost you measurable revenue.

What we will not tell you: that everyone needs a custom system. If you have a few dozen products and standard processes, that is what we will say at the survey, because the wrong platform is a loss for both sides. The break-even point is usually where the monthly fee of a hosted platform plus the cost of the compromises it forces exceeds the amortised price of custom development.

Which platform suits your webshop?

There is no best webshop system, only the one that fits a given business. Four things drive the decision: the number of products and the complexity of the attributes, the integration needs, the expected traffic and how unusual your business logic is. We can work in all four directions, so at the survey we honestly recommend whatever gives you the lowest total cost of ownership.

Our own system
WebPot CMS + WShop
Small and medium catalogues where speed and discoverability matter most and a jungle of plugins is not needed.
  • Server-side rendering, for AI search engines too
  • CDN image optimisation with WebP/AVIF
  • No licence or per-feature fee
  • Quick launch, low server requirements
Open source
WooCommerce
If you already have a WordPress site and work with content marketing, from a few hundred to a few thousand products.
  • Strong content and blog side
  • A large plugin marketplace
  • Lower entry cost
  • The pile of plugins needs maintenance
Enterprise
Magento 2
Thousands of products, several warehouses, B2B permissions, multiple languages and currencies, complex pricing.
Hosted
Shoprenter, Unas
A starting store or one with standard processes, where launching fast matters more than custom logic.
  • A store live within days
  • A predictable monthly fee
  • Limited custom development
  • We help with a later migration

A comparison by decision criteria

CriterionWShopWooCommerceMagento 2Hosted platform
Recommended product count10 – 5 00050 – 3 0001 000 – 500 00010 – 2 000
Time to launch2 – 6 weeks3 – 8 weeks3 weeks – 9 monthsdays
Custom business logicunlimitedmediumunlimitedheavily limited
B2B featurescan be builtvia pluginbuilt inbasic
Multiple languages and currenciessupportedvia pluginbuilt independs on the plan
Server requirementslowmediumhigh, dedicated VPSnone, the provider handles it
Fixed monthly costhosting + maintenancehosting + pluginsVPS + maintenancesubscription + modules
Source code and datahanded over to youyoursyoursheld by the provider
Exit costlowlowmediumhigh, migration needed

The table describes typical cases, not absolute limits: there is an exception to every row. For the decision we look at your actual catalogue and processes.

If you want to see the difference in numbers, our detailed comparison works out the three-year total cost of all four routes, with the real monthly fees: Magento 2, WooCommerce, UNAS or Shoprenter: which webshop system is right for you?

How much does building a webshop cost?

Launching a webshop typically runs between €3,900 and €45,000 net, depending on whether it is a store on standard foundations, a custom build, or a densely integrated system with B2B features. The price is driven mainly by the number of integrations, the state of the data to be migrated and the custom business logic, not by the design. For an enterprise-scale Magento 2 rollout the range moves up; we cover that separately on the Magento 2 webshop page. Ongoing maintenance is separate from this, as a monthly arrangement. Every project is quoted after an individual survey and agreement; the ranges below are for orientation, not an offer.

Launch price ranges

Entry webshop
€3,900 – 7,500
net, one-off
2 – 6 weeks
On WShop or WooCommerce, up to a few hundred products, with standard payment and courier integrations and an invoicing connection.
Custom webshop
€7,500 – 18,000
net, one-off
6 – 12 weeks
Your own branding, custom business logic and pricing, data migration from another system, several integrations, performance tuning.
Complex or B2B
€18,000 – 45,000
net, one-off
3 – 6 months
ERP and warehouse system connections, partner price lists, multiple languages and currencies, a custom checkout, a large catalogue, a dedicated VPS.
Budget package
from €1,900
net, one-off
1 – 2 weeks
On the engine of your choice, with a fixed layout, up to about a hundred products, with product copy and images largely produced by AI, one payment and one courier integration and an invoicing connection.
Enterprise scale
Custom quote
by agreement
scheduled by agreement
Magento 2 or multistore scale, a dedicated team, a long-running rollout. Detailed ranges on the Magento 2 page.

Maintenance packages

Basic
€70 – 180
net / month
Security updates, backup checks, uptime monitoring, a monthly status report.
Operations
€180 – 400
net / month
Everything in Basic, plus version tracking, performance checks, integration monitoring and prioritised bug fixing.
Partner
€400 – 1,000
net / month
Everything in Operations, plus a monthly development budget, a quarterly technical audit and a dedicated contact.
Bespoke
By agreement
monthly arrangement
Several stores, multistore, ERP connection, extended availability, an on-call window.

What drives the price?

The same sentence, I would like a webshop, can mean a €4,000 project or a €40,000 one. These are the factors that make the difference:

  • Product count and variants: there is an order-of-magnitude difference between 200 simple products and 5,000 products with size and colour variants.
  • The volume and quality of the data to be migrated: cleaning up a messy old database is often more work than the import itself.
  • Number of integrations: every payment provider, courier, invoicing tool and ERP is its own round of development and testing.
  • Custom pricing and business logic: tiered discounts, bundle offers, selling by the gram or the metre, reseller levels.
  • Checkout customisation: the one-page checkout, pickup-point selector and instalment payment bring the most custom requirements.
  • Preparing content and product data: if there is no finished product copy and photography, that is a work stream of its own.
  • The level of legal compliance: GPSR data fields, accessibility (WCAG 2.1 AA), terms and conditions and data protection processes.
  • Multiple languages and currencies: every additional language adds content and operational overhead.
  • Performance targets: keeping within the Core Web Vitals thresholds on a large catalogue is work of its own.

The ranges above are net and indicative. Every project is quoted after an individual survey and agreement; for a rollout beyond the top range we give a custom quote.

Webshop development step by step

Most webshop projects do not slip on the coding but on expectations that were never clarified. That is why every stage ends with a tangible deliverable you can sign off, so at any point in the project you can see where we are and why.

1

Survey and platform choice3 – 10 days

We go through the business process: the source of the product data, pricing, stock handling, invoicing, shipping, returns. We establish the product count, the variant structure and the integrations needed, and the platform recommendation follows from that.

Deliverable: a written requirements list, a platform recommendation with reasoning, and a quote.
2

Data model and structure1 – 2 weeks

Defining the category tree, product attributes, variant logic, filters and URL structure. This decides whether the catalogue stays searchable and extensible later, or whether every new product group becomes a separate development job.

Deliverable: an approved data model and category and URL structure.
3

Design and customer journey1 – 3 weeks

Designing the home, category, product and checkout pages mobile-first, with accessible contrast and keyboard navigation. The checkout is built specifically to reduce cart abandonment.

Deliverable: an approved design for the key pages, in mobile and desktop views.
4

Development and integrations2 – 12 weeks

Building the store, custom business logic, payment gateway, courier and pickup points, invoicing, a stock or ERP connection, feeds and measurement. Meanwhile you can check the state of it in a test environment at any time.

Deliverable: a working test store with real data and test payments.
5

Data migration and content3 days – 4 weeks

Moving products, categories, customers and orders over from the old system, with data cleaning and a 301 redirect map so that existing search rankings are not lost. Plus the mandatory content: terms and conditions, privacy, GPSR data.

Deliverable: a migrated and verified database, and a redirect map.
6

Testing and go-live1 – 2 weeks

We play through the whole purchase journey in every payment and shipping combination, check the speed, the Core Web Vitals scores, the measurement and legal compliance. Then comes the switch to live and a supervised first period.

Deliverable: a live webshop, with handover documentation and admin training.
7

Operation and growthongoing

Security updates, monitoring, backups, bug fixing, plus data-driven development: what the analytics show, where customers drop out, which category can take more. A webshop is never finished, it lives.

Deliverable: a monthly status report and a prioritised development list.

Integrations a webshop cannot work without

Much of the value of a webshop lies in how much manual work it takes off your hands. When an order automatically becomes an invoice, stock goes down, the courier label is produced and the customer gets tracking, then the webshop is working for you. On the Hungarian market these are the typical connection points:

Payment gateways

  • SimplePay (OTP)
  • Barion
  • Stripe, PayPal
  • Bank transfer, cash on delivery
  • Instalments, consumer credit

The pitfall of a payment integration is not the wiring but handling the error states: timeouts, duplicate callbacks, abandoned transactions.

Shipping and pickup points

  • Foxpost, Packeta, Z-Box
  • MPL, GLS, DPD, Express One
  • Pickup point selector in the checkout
  • Automatic label generation
  • Tracking and notifications

A map-based pickup point selector and shipping rates by weight or order value are the two most common custom requirements.

Invoicing and NAV

  • Invoicing system connection
  • NAV Online Invoice reporting
  • Proforma, cancellation, correction
  • EU VAT rates, OSS
  • Automatic invoice delivery by e-mail

Invoicing is the point where a fault has immediate legal and accounting consequences, so here we always run a full error-path test.

Stock and ERP

  • Two-way stock sync
  • Multiple warehouses
  • Importing partner price lists
  • Supplier product feeds
  • Stock by the gram or the metre

The critical question is always the same: which system is the source of truth for stock and price, and what happens when they disagree.

Measurement and advertising

  • GA4 server-side tracking
  • Google Ads Enhanced Conversions
  • Meta Conversions API
  • Consent Mode v2, cookie handling
  • Revenue attribution per channel

With browser-side measurement 15–30% of conversions are routinely lost today. We have a separate page on server-side tracking: GA4 server-side.

Product feeds and marketplaces

  • Google Shopping / Merchant Center
  • Price comparison sites
  • Meta catalogue
  • eMAG and marketplace feeds
  • Custom XML and CSV export

A feed is not a one-off export but a maintained data flow: a missing GTIN, the wrong category depth or a price mismatch gets your ads rejected straight away.

Customer management and marketing

  • Newsletter and automation
  • Cart abandonment recovery e-mail
  • Review request flow
  • Loyalty points, coupons, gift cards
  • CRM and helpdesk system

Winning back a returning customer is several times cheaper than acquiring a new one, so it is worth building the win-back flows in from the start.

Search and AI visibility

  • A fast internal search that tolerates typos
  • Product structured data (Product schema)
  • SSR that AI search engines can read too
  • Content on category and product pages
  • Sitemap and indexing supervision

AI-based search engines answer more and more shopping questions themselves, so if they cannot read the content of your webshop, it is left out of the answer.

Legal compliance: what a Hungarian webshop has to handle

Several rules have come into force in recent years that directly affect the interface and the data structure of a webshop. These cannot be bolted on afterwards: they have to be built into the product data model, the checkout flow and the templates. So it is worth accounting for them as early as the design stage of webshop development.

from 28 June 2025

Accessibility: the European Accessibility Act (EAA)

E-commerce services have to be accessible; the practical benchmark is WCAG 2.1 AA, and it applies not only to the home page but to the whole customer journey: product page, cart, checkout, confirmation. Micro-enterprises with fewer than 10 employees and under EUR 2 million turnover are subject to lighter rules, but compliance is recommended for them as well.

  • Navigation and checkout traversable by keyboard, with a visible focus
  • Adequate text-to-background contrast and resizable text
  • Alt text on images, a correct heading hierarchy
  • Labelled form fields, error messages in text as well
  • An accessibility statement and a feedback channel
from 13 December 2024

GPSR: the General Product Safety Regulation

EU regulation 2023/988 requires specific data on the product page, which for most webshops means new product attributes and template changes, because a paragraph in the terms and conditions is not enough.

  • The manufacturer name, trade name or trademark, postal and electronic contact details
  • For a non-EU manufacturer, the details of the responsible person in the EU
  • Product identifiers: type, item number, serial number, product image
  • Warnings and safety information in plain language
  • Support for product recall and accident reporting processes
ongoing

NAV Online Invoice and invoicing

Reporting on issued invoices has to be automatic and immediate. The practical question is where the invoice is created between the webshop, the invoicing tool and the accounting, and what happens on a cancellation, a partial delivery or a return; these error paths have to be tested through at launch.

ongoing

Consumer protection, terms and data protection

  • Right of withdrawal and a model declaration, a 14-day deadline
  • Price transparency: showing the previous lowest price on a discount
  • Verifying that customer reviews are genuine
  • Stating shipping cost and delivery time clearly before checkout
  • GDPR: purpose-bound data processing, a cookie manager and Consent Mode v2
  • Information on online dispute resolution and the arbitration board
depending on the product range

EPR and further product-specific obligations

Extended producer responsibility (EPR) and environmental product fee reporting depend on the packaging and the product range, so the webshop has to be able to record packaging weight and material type at product level. Energy labels, cosmetic ingredient lists and food labelling are similarly product-dependent.

Important: the summary above is for information only and does not constitute legal advice. We take on the technical implementation, on the side of data fields, processes and the interface; for the actual legal wording it is worth involving a lawyer as well.

Frequently asked questions about webshop development

Getting started and deciding
How long does it take to build a webshop?

An entry-level webshop with a few hundred products goes live in 2–6 weeks. With custom branding, migration and several integrations 6–12 weeks is typical, and 3–6 months for a complex or B2B system. In practice what usually stretches the deadline is not development but preparing the product data and the content.

Should I choose a hosted platform or a custom webshop?

A hosted platform makes sense if your processes are standard, you have a few hundred products and you want to launch fast. A custom webshop pays off if you have your own business logic, need deeper integrations, or the monthly fees and limits of the hosted platform already cost you measurable revenue. At the survey we will tell you honestly if yours is the first case.

How much does building a webshop cost?

The typical range is between €3,900 and €45,000 net: an entry store €3,900 – 7,500, a custom webshop €7,500 – 18,000, a complex or B2B system €18,000 – 45,000. The price is driven by the number of integrations, the state of the data to be migrated and the custom business logic, not by the design. At enterprise scale, on Magento 2, the range moves up.

A detailed price table and a three-year total cost calculation are in our webshop development prices 2026 article.

Is there a monthly fee for the webshop?

There is no per-feature licence fee. Monthly costs are hosting or a VPS plus the maintenance package you choose: Basic €70–180, Operations €180–400, Partner €400–1,000 net per month. The store works without maintenance too, but skipping security updates and monitoring costs more in the long run.

From how many products is a custom system worth it?

The product count alone does not decide it. Custom development can be justified with fifty products if the pricing is complex or it has to connect to an ERP, and a well-built WooCommerce can be enough for five thousand simple products. The deciding factors are the business logic and the integration needs.

Platform and technology
Which platforms do you develop on?

On our own WebPot CMS + WShop system, on WooCommerce and on Magento 2, and we also take over custom PHP, OpenCart and PrestaShop stores. Because we can work in several directions, we have no interest in forcing a single platform onto the project.

What is WShop and why your own system?

WShop is the webshop module of WebPot CMS: a PHP system we developed ourselves, in which the parts responsible for speed, that is server-side rendering, CDN image optimisation in WebP and AVIF and caching, are built in rather than assembled from plugins. That way the store stays fast on lower server requirements, with no maintenance burden from plugin conflicts.

Will the source code and the data be mine?

Your database and your product data are always yours and can be exported at any time. With WooCommerce and Magento the whole code base is yours as well. On our own WShop system we hand over the custom development built for the project and the data, and the terms for using the framework are set out in the contract; we do not build in locks that block you from leaving.

How fast will the webshop be?

The goal is to stay within the Core Web Vitals thresholds on real data, on mobile too. That takes server-side rendering, image optimisation, caching and database tuning. On a large catalogue this is a work stream of its own, not a by-product. Speed is not only a ranking factor: it is directly linked to cart abandonment.

What hosting does a webshop need?

For a smaller store good quality shared hosting is enough, but depending on traffic and catalogue size a dedicated VPS soon becomes necessary, and with Magento it is practically mandatory. We also run Ubuntu VPS servers ourselves; the details are on the VPS server page.

Migration and takeover
Can you migrate my existing webshop?

Yes. We migrate from Shoprenter, Unas, WooCommerce, PrestaShop, OpenCart and Magento: products, categories, customers, orders and content are moved over with data cleaning. We build a 301 redirect map for the old URLs so that rankings and link equity are not lost.

Will I lose my Google rankings when migrating?

Not with a properly executed migration. The key is a complete URL inventory, gapless 301 redirects, carrying over headings and meta data, preserving the structured data and watching indexing after go-live. A temporary fluctuation of a few weeks can happen; a lasting drop should not.

Do you take over a webshop built by another developer?

Yes, this is a common job. We start with a technical audit: what is in the code base, how upgradable it is, where the security and data loss risks are, what is missing from the documentation. From that we produce a risk list and a prioritised plan, and only then does the actual development start.

Operation and compliance
Which payment and shipping methods can be connected?

For payments SimplePay, Barion, Stripe, PayPal, bank transfer and cash on delivery, with instalments on request. For shipping Foxpost, Packeta, MPL, GLS, DPD and Express One, with a map-based pickup point selector, automatic label generation and tracking.

Do you handle the NAV Online Invoice and invoicing connection?

Yes. The order automatically becomes an invoice in the invoicing tool you choose, and the report goes to NAV immediately. We test the error paths through before go-live (cancellation, correcting invoice, partial delivery, return), because here a fault has immediate accounting consequences.

Is accessibility mandatory for a webshop?

The European Accessibility Act applies to e-commerce services from 28 June 2025, and its practical benchmark is WCAG 2.1 AA across the whole customer journey. Micro-enterprises with fewer than 10 employees and under EUR 2 million turnover are subject to lighter rules. We build new stores with an accessible structure by default, and for an existing one we recommend an order of work after an audit.

What has to be shown on the product page because of GPSR?

From 13 December 2024, the manufacturer name and contact details, for a non-EU manufacturer the details of the responsible person in the EU, the product identifiers and image, plus safety and warning information in plain language. In practice this means new product attributes and template changes, not a paragraph in the terms.

How can you measure whether the webshop pays off?

Only if the measurement is reliable. For that we build GA4 server-side tracking with Enhanced Conversions and Consent Mode v2 support, so the ad platforms see real revenue rather than an estimate. After that the return per channel, the basket value and the customer lifetime value become meaningful.

Will my webshop show up in AI search engines too?

Only if its content arrives rendered server-side, with structured data. AI answer engines do not run a browser the way a user does: if the product data loads only from JavaScript, it is left out of the answer. Our WShop system provides server-side rendering and Product structured data by default; on WooCommerce and Magento we set this up separately.

Can I upload products and edit content myself?

Yes, that is a basic requirement. The handover includes admin training and short documentation, so that day-to-day work – adding products, changing prices, running promotions, editing text, handling orders – never needs a developer. For bulk uploads we build CSV or XML import and supplier feed processing.

What happens after go-live?

We supervise the first period: we watch the error log, the payment transactions, the measurement and the indexing. After that there is an optional maintenance package covering security updates, backup checks, monitoring and prioritised bug fixing, with a monthly status report.

Extension and growth
Can price comparison sites and Google Shopping be connected?

Yes, the webshop produces an automatic product feed for price comparison sites, Google Shopping and the Meta catalogue. The feed reflects real prices and stock, so it needs no manual upkeep. We also connect the review integration of price comparison sites, because ratings improve the click-through rate too.

Can coupons, promotions and newsletters be handled in the webshop?

Yes, coupon handling and promotional pricing are part of the system, and for newsletters we connect either a built-in solution or an external provider. Custom loyalty logic, such as points or a regular-customer price level, can also be built. The goal is for a returning customer to cost less than acquiring a new one.

Can the webshop be connected to an ERP, stock system or invoicing tool?

Yes, we build API-based integrations: stock and price sync from an ERP, automatic invoicing, orders written back into the management system. Stock across several sales channels can be kept in sync as well. Integration is the most common custom development item in webshop projects.

Can B2B pricing and custom price lists be done?

Yes, price levels per customer group, custom discounts, quantity pricing and quote-based selling can all be set up. For larger B2B needs Magento 2 is the strongest base; for smaller ones the custom price logic of WShop is enough. Login-gated prices and net price display are covered too.

Can I sell abroad with the webshop?

Yes, multiple languages, several currencies and per-country shipping rates can all be handled. For sales within the EU we also help set up the OSS VAT rules, and we adapt the payment and courier integrations to the target countries. It is worth flagging at the start, because it affects the structure.

Webshop glossary

The terms that keep coming up in quotes and developer conversations, explained briefly, so the decision never turns on wording.

Checkout

The sequence of steps from the cart to a successful payment. The most critical part of a webshop: every unnecessary field and step causes measurable drop-off.

Variant

A version of the same product by size, colour or packaging, with its own stock and price. The variant structure determines how complex the catalogue is.

Attribute

A structured property of the product (material, weight, manufacturer, power rating). Filters, feeds and GPSR data fields are all built from these.

Core Web Vitals

Google's three user experience metrics: loading speed, interaction responsiveness and visual stability. They are measured on real user data.

SSR (server-side rendering)

The server sends finished HTML instead of the browser assembling it from JavaScript. This is what makes the content readable to search engines and AI answer engines.

Product feed

A structured product list (XML or CSV) for advertising and comparison platforms: Google Shopping, price comparison sites, the Meta catalogue.

GTIN / EAN

An international, barcode-based product identifier. Its absence is a typical reason for rejection on Google Shopping and on marketplaces.

Payment gateway

The provider that processes card payments (SimplePay, Barion, Stripe). The webshop only redirects and handles the callback; it never stores card data.

Webhook / callback

A notification from an external system to the webshop (for example about a successful payment). Handling duplicate or late callbacks is a classic source of bugs.

ERP

The enterprise system that manages stock, prices and orders. In an integration the main question is which system is the source of truth.

301 redirect

A permanent redirect from an old URL to a new one. In a migration this is what preserves search rankings and the strength of inbound links.

Structured data (schema)

Machine-readable markup about the product, price, stock and reviews. This is what enables rich results and citations in AI answers.

WCAG 2.1 AA

The middle level of the international accessibility standard. The practical benchmark of the EAA for e-commerce services.

Consent Mode v2

Google's consent handling framework. Without it, measuring ad conversions and building audiences is limited in the EU.

Server-side tracking

Measurement data goes to the analytics system from the server, not from the browser. It gives more accurate conversion data even with ad blockers and cookie restrictions.

Cart abandonment

When a visitor adds to the cart but does not complete the purchase. The most common causes: an unexpected shipping fee, forced registration, a slow or long checkout.

Multistore

Running several stores on a shared back end: separate domains, branding, languages or currencies, with a common catalogue and admin.

Staging environment

A test environment identical to production, where development and updates can be tried out risk-free before customers meet them.

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