BigCommerce Agency Nottingham UK | Fulminous Software

Nottingham is one of the UK's most exciting and commercially dynamic cities — a thriving hub of retail, technology, creative industries, and professional services, with a growing e-commerce ecosystem that is producing ambitious, fast-scaling online businesses across every sector. In this competitive environment, the e-commerce platform you choose and the agency you trust to build and manage it can be the difference between an online store that underperforms and one that drives transformational commercial growth.

BigCommerce is one of the world's most powerful, scalable, and feature-rich e-commerce platforms — the preferred choice of high-growth UK retailers, B2B businesses, and multi-channel brands who need enterprise-grade capability without the complexity and overhead of platforms like Magento. With native multi-currency support, advanced B2B functionality, headless commerce capability, and an exceptional performance architecture, BigCommerce is increasingly the platform of choice for Nottingham's most ambitious e-commerce businesses.

Fulminous Software is a leading UK-based BigCommerce agency delivering professional BigCommerce design, development, and ongoing support services to businesses in Nottingham, across the East Midlands, and throughout the United Kingdom. Whether you are launching a new BigCommerce store from scratch, migrating from Shopify, WooCommerce, or Magento, or wanting to optimise and grow an existing BigCommerce platform, our specialist team has the expertise, the process, and the commercial focus to deliver results that genuinely move the needle for your Nottingham business.

This comprehensive guide covers everything Nottingham businesses need to know about BigCommerce — what it is, why it is the right platform for ambitious UK retailers, the services available, development costs, and why Fulminous Software is the right BigCommerce agency for your business.

What Is BigCommerce and Why Are Nottingham Businesses Choosing It?

BigCommerce is a leading Software-as-a-Service (SaaS) e-commerce platform founded in 2009 and now trusted by over 60,000 businesses in over 150 countries — including some of the world's most recognised brands. Unlike traditional self-hosted platforms such as Magento, BigCommerce manages all hosting, security, and infrastructure on behalf of the merchant — providing enterprise-grade performance and reliability without the DevOps overhead and infrastructure management costs that self-hosted platforms demand.

BigCommerce's key advantages for Nottingham e-commerce businesses include:

• No transaction fees: Unlike Shopify, BigCommerce charges zero transaction fees on any payment gateway — a significant commercial advantage for high-volume Nottingham retailers
• Superior native functionality: BigCommerce includes more built-in features than any comparable SaaS platform — product variants, multi-currency, faceted search, abandoned cart recovery, and advanced promotional tools are all native — reducing reliance on expensive third-party apps
• Exceptional scalability: BigCommerce's infrastructure handles traffic spikes, peak sales events, and rapid business growth without performance degradation — critical for Nottingham retailers running Black Friday campaigns or high-profile product launches
• Headless commerce capability: BigCommerce's API-first architecture makes it the leading platform for headless e-commerce — enabling Nottingham businesses to build custom frontends with Next.js or React whilst using BigCommerce as the commerce engine
• Advanced B2B functionality: BigCommerce's B2B Edition provides native wholesale pricing, customer group pricing, quote management, and company account management — making it the strongest SaaS platform for UK B2B e-commerce
• Multi-storefront capability: BigCommerce's multi-storefront feature allows Nottingham businesses to manage multiple distinct storefronts — different brands, different regions, or different customer segments — from a single BigCommerce account
• SEO-first architecture: BigCommerce's clean URL structure, fast page loading, and comprehensive SEO tooling make it one of the strongest SaaS platforms for organic search performance

Why Nottingham's E-Commerce Businesses Are Switching to BigCommerce

Nottingham has a proud retail heritage — from the legendary Nottingham Lace market to Victoria Centre and the city's thriving independent retail scene. Today, many of Nottingham's most successful retailers have built powerful online businesses alongside their physical operations — and a growing number are discovering that their previous platform, whether Shopify, WooCommerce, or Magento, is holding them back.

Common reasons Nottingham businesses are migrating to BigCommerce include:

• Shopify transaction fees becoming commercially significant at higher revenue volumes
• WooCommerce performance degrading under growing catalogue size and traffic
• Magento maintenance costs and complexity consuming disproportionate technical resource
• The need for genuine B2B pricing capabilities without expensive custom development
• The desire for headless commerce flexibility without abandoning a robust commerce backend
• Ambitious growth plans requiring an enterprise-grade platform that will not need replacing again in two years

BigCommerce Development Services Offered by Fulminous Software in Nottingham

As a specialist BigCommerce agency serving businesses in Nottingham and across the UK, Fulminous Software provides a comprehensive range of BigCommerce services — from initial store design and development through to migration, integration, and ongoing growth optimisation:

Bespoke BigCommerce Store Design and Development

We design and build fully bespoke BigCommerce storefronts that reflect your brand identity, communicate your value proposition clearly, and are engineered from the ground up for conversion performance and commercial results. Our BigCommerce development team works in Stencil — BigCommerce's native theming framework — and React/Next.js for headless implementations, delivering fast, visually distinctive, and commercially optimised online stores for Nottingham businesses. Talk to us about your BigCommerce store design.

BigCommerce Theme Customisation

For Nottingham businesses wanting to improve their existing BigCommerce store without a full rebuild, we provide expert BigCommerce theme customisation — modifying and extending Stencil themes to align with your brand, improve your conversion rate, add missing functionality, and enhance the mobile shopping experience. Whether you need subtle refinements or significant design overhauls, our BigCommerce developers deliver results without disrupting your live store.

BigCommerce Platform Migration

Migrating from your existing e-commerce platform to BigCommerce is one of the most commercially impactful decisions your Nottingham business can make — but only if it is done properly. A poorly managed migration can result in lost product data, broken URLs, damaged Google rankings, and a disrupted customer experience that takes months to recover from.

Fulminous Software manages the full BigCommerce migration process for Nottingham businesses — including product data migration, customer record migration, order history migration, comprehensive URL redirect mapping for SEO continuity, payment gateway migration, and thorough pre-launch testing. Platforms we migrate from include Shopify, WooCommerce, Magento, PrestaShop, OpenCart, and bespoke legacy systems. Enquire about BigCommerce migration for your Nottingham store.

Headless BigCommerce Development

Headless commerce — using BigCommerce as the commerce backend whilst building a custom React or Next.js frontend — delivers exceptional performance, design freedom, and omnichannel capability that traditional theme-based BigCommerce cannot match. For Nottingham businesses with ambitious performance targets, complex UX requirements, or multi-channel content needs, headless BigCommerce is the most powerful deployment architecture available.

Fulminous Software specialises in headless BigCommerce development — designing and building custom frontends that achieve outstanding Core Web Vitals scores, distinctive brand experiences, and seamless integration with BigCommerce's commerce engine via its GraphQL Storefront API.

BigCommerce B2B Development

For Nottingham wholesalers, distributors, and manufacturers selling to trade customers online, BigCommerce's B2B Edition provides the most capable native B2B e-commerce feature set of any SaaS platform. Fulminous Software configures and customises BigCommerce B2B to meet the specific requirements of Nottingham B2B businesses — including customer group pricing, company account management, purchase order workflows, net payment terms, quote request systems, and trade-specific catalogue visibility. Discuss your BigCommerce B2B requirements with our team.

BigCommerce App and Integration Development

A BigCommerce store that operates in isolation from your wider business systems delivers a fraction of its potential commercial value. Fulminous Software designs and builds the integrations that connect your BigCommerce store to your existing technology stack — including ERP systems (Sage, SAP, Microsoft Dynamics), CRM platforms (Salesforce, HubSpot), marketing automation tools (Klaviyo, Dotdigital), warehouse management systems, fulfilment providers, and accounting software (Xero, QuickBooks).

We also build custom BigCommerce apps for functionality not available in the BigCommerce App Marketplace — delivering bespoke capabilities that give Nottingham businesses a commercial edge their competitors cannot easily replicate.

BigCommerce Conversion Rate Optimisation

Increasing the percentage of your BigCommerce store's visitors who convert into customers is frequently the highest-return investment available to Nottingham e-commerce businesses. Fulminous Software provides BigCommerce conversion rate optimisation (CRO) services — analysing your store's user journey data, identifying conversion barriers, implementing A/B tests, and making evidence-based improvements to product pages, category pages, checkout flow, and mobile experience that measurably increase revenue without increasing advertising spend.

BigCommerce SEO Services

BigCommerce's SEO architecture is one of its strongest features — but maximising organic search performance requires specialist BigCommerce SEO expertise. Our BigCommerce SEO service covers technical SEO audit and optimisation, product page optimisation, category page architecture, URL structure, structured data implementation, Core Web Vitals optimisation, and an ongoing content strategy — helping Nottingham BigCommerce stores rank prominently on Google for high-value product and category searches. 

Ongoing BigCommerce Support and Maintenance

Post-launch, your BigCommerce store requires consistent attention — app updates, theme updates, performance monitoring, security reviews, content updates, and ongoing feature development. Fulminous Software provides flexible BigCommerce support and maintenance packages for Nottingham businesses — ensuring your store remains secure, optimised, and evolving in line with your business growth. 

Our BigCommerce Development Process for Nottingham Businesses

At Fulminous Software, we follow a structured, transparent, and collaborative development process that ensures every BigCommerce project we deliver for Nottingham businesses is commercially focused, technically excellent, and launched on time:

Stage 1: Discovery and E-Commerce Strategy

Every BigCommerce project begins with a thorough discovery session. We invest time genuinely understanding your Nottingham business — your products, your customers, your competitors, your current platform challenges, and the commercial goals you want your new BigCommerce store to achieve. We assess your product catalogue, your integration requirements, your B2C or B2B model, and your growth trajectory — using these insights to design a BigCommerce strategy that is right for your specific business rather than generic.

Stage 2: UX Design and Conversion Architecture

Before a single line of code is written, our UX designers create detailed wireframes and user journey maps for your BigCommerce store — defining the structure of your homepage, category pages, product pages, cart, and checkout to maximise conversion at every stage of the purchase funnel. Conversion-focused UX design is one of the most commercially impactful investments in any e-commerce project — yet it is frequently the most underinvested stage of e-commerce builds.

Stage 3: Visual Design

With UX approved, our designers create high-fidelity visual designs that bring your brand to life in a BigCommerce context — building a storefront that is visually compelling, brand-aligned, and optimised for the product categories and customer experience your Nottingham business needs. We present designs for review and work collaboratively through feedback until every detail is exactly right.

Stage 4: BigCommerce Development and Build

Our development team builds your BigCommerce store using Stencil theming for standard implementations or React/Next.js for headless deployments — following BigCommerce best practice coding standards and performance optimisation techniques throughout. Products, collections, and content are configured, all required apps are installed and configured, and all system integrations are built and tested in a staging environment before go-live.

Stage 5: Data Migration and Content Population

For Nottingham businesses migrating from an existing platform, we manage the complete data migration process — products, variants, images, categories, customer records, and order history — using BigCommerce's import tools and custom migration scripts. All migrated data is thoroughly QA'd before launch. URL redirect mapping is implemented to ensure your Google search rankings are protected during the transition.

Stage 6: Quality Assurance and Testing

Before any BigCommerce store goes live, we conduct comprehensive quality assurance testing — covering all purchase journeys, payment gateway processing, shipping and tax calculations, mobile responsiveness across devices, cross-browser compatibility, and integration functionality. Performance testing ensures fast load times, and accessibility testing confirms compliance with WCAG 2.1 standards.

Stage 7: Launch and Go-Live

We manage the complete BigCommerce launch process — domain configuration, DNS propagation, SSL verification, Google Analytics 4 setup, Google Search Console submission, and post-launch monitoring in the critical period immediately following go-live. Our team is on hand to resolve any post-launch issues rapidly and decisively.

Stage 8: Post-Launch Growth and Optimisation

A BigCommerce store launch is the beginning of the commercial journey — not the end. Fulminous Software works with Nottingham clients post-launch to continuously improve conversion rates, grow organic search traffic, develop new features, and expand the store's commercial capability as the business grows. 

BigCommerce vs Shopify vs WooCommerce: Which Is Right for Your Nottingham Business?

Choosing between BigCommerce, Shopify, and WooCommerce is one of the most important decisions a Nottingham e-commerce business will make. Here is an honest, practical comparison:

BigCommerce vs Shopify

Shopify is the most widely used e-commerce platform in the UK — and for straightforward B2C retail with modest volumes, it is a strong choice. However, BigCommerce consistently outperforms Shopify in several commercially significant areas for growing Nottingham businesses:

• No transaction fees: Shopify charges 0.5–2% transaction fees on all non-Shopify Payments transactions. For a Nottingham business processing £1 million in annual revenue, this can represent £5,000–£20,000 per year in avoidable costs
• More native features: BigCommerce includes features as standard that Shopify charges for via paid apps — including abandoned cart recovery, advanced promotions, faceted search, and multi-currency
• Better B2B capability: BigCommerce's B2B Edition is significantly more capable than Shopify's B2B offering for Nottingham wholesalers and distributors
• Superior SEO architecture: BigCommerce's SEO capabilities are widely regarded as stronger than Shopify's — particularly for large catalogue stores

BigCommerce vs WooCommerce

WooCommerce is an excellent choice for smaller Nottingham e-commerce businesses — particularly those already on WordPress. However, as businesses grow, WooCommerce's self-hosted nature introduces challenges that BigCommerce avoids entirely:

• Hosting management: WooCommerce requires Nottingham businesses to manage their own hosting, security, and server performance. BigCommerce manages all of this as part of the platform subscription
• Performance at scale: WooCommerce can struggle with large catalogues and high traffic without significant hosting investment and technical management. BigCommerce handles scale natively
• Security responsibility: WooCommerce security is the merchant's responsibility. BigCommerce manages PCI DSS compliance and security patching on behalf of all merchants
• Total cost of ownership: WooCommerce's apparent low cost increases significantly when hosting, security, maintenance, and plugin costs are properly accounted for

When WooCommerce or Shopify Are the Better Choice

Fulminous Software is honest with Nottingham businesses about platform fit. BigCommerce is not always the right answer. Shopify may be more appropriate for businesses wanting the simplest possible setup and a very large app ecosystem. WooCommerce may be more appropriate for businesses with strong WordPress expertise and modest catalogue requirements. Our platform recommendation is always based on your specific business requirements — not on which platform is most profitable for us to build on.

BigCommerce Development Costs for Nottingham Businesses

Understanding the investment required for professional BigCommerce development helps Nottingham businesses plan and budget effectively. Here is a transparent guide to BigCommerce costs in the UK in 2026:

BigCommerce Platform Subscription Costs

• BigCommerce Standard: Approximately £27/month — suitable for businesses with up to £50,000 annual online revenue
• BigCommerce Plus: Approximately £68/month — includes abandoned cart recovery and customer groups; suitable for up to £150,000 annual revenue
• BigCommerce Pro: Approximately £240/month — full feature set for high-growth Nottingham retailers; suitable for up to £400,000 annual revenue
• BigCommerce Enterprise: Custom pricing (typically £1,000–£5,000+/month) — for large Nottingham businesses with high-volume requirements, B2B Edition access, and dedicated support

BigCommerce Development Investment Ranges

• Theme customisation of an existing BigCommerce theme: £2,000 – £8,000 — for businesses wanting to modify and brand an existing Stencil theme without a full custom build
• Professional BigCommerce store build (custom Stencil theme, standard integrations): £8,000 – £25,000 — for Nottingham SMEs wanting a professionally designed, conversion-optimised BigCommerce store
• Advanced BigCommerce platform (bespoke design, multiple integrations, B2B features): £25,000 – £60,000 — for growing Nottingham businesses with complex catalogue requirements, B2B pricing, and deep system integrations
• Headless BigCommerce development (custom React/Next.js frontend): £30,000 – £100,000+ — for businesses prioritising maximum performance, design freedom, and omnichannel capability
• BigCommerce migration (from Shopify, WooCommerce, or Magento): £3,000 – £20,000 — depending on catalogue size, data complexity, and integration requirements

Ongoing BigCommerce Costs

• Platform subscription: £27 – £5,000+/month (as above)
• BigCommerce apps: Variable — budget £100–£500/month for essential third-party apps
• Maintenance and support retainer: £500 – £3,000/month depending on development volume required
• BigCommerce SEO campaign: £500 – £2,500/month for ongoing organic search growth

Fulminous Software provides detailed, itemised project quotations following a free initial consultation — with staged payment plans tied to project milestones. Get your free BigCommerce development cost estimate today.

Why Choose Fulminous Software as Your BigCommerce Agency in Nottingham?

Nottingham businesses have a range of BigCommerce agency options available to them. Here is why ambitious Nottingham e-commerce businesses choose Fulminous Software:

Genuine BigCommerce Technical Expertise

Our development team has deep, hands-on expertise in BigCommerce — including Stencil theming, BigCommerce's GraphQL Storefront API, headless BigCommerce implementation, BigCommerce B2B Edition, multi-storefront configuration, and custom app development. We work exclusively with professional e-commerce platforms and bring the depth of specialisation that complex BigCommerce projects demand.

Conversion-First Commercial Approach

We do not build BigCommerce stores that look good but underperform commercially. Every design decision, every UX choice, and every development decision we make is evaluated through a conversion performance lens — because the only metric that ultimately matters for a Nottingham e-commerce business is revenue generated. Our BigCommerce builds consistently outperform industry average conversion rates.

Full-Service Capability

From initial strategy and UX design through to Stencil development, system integration, data migration, SEO, CRO, and ongoing growth support — Fulminous Software manages every aspect of your BigCommerce project and ongoing store performance. One partner, complete accountability, no gaps.

East Midlands Market Understanding

We understand the Nottingham and East Midlands business environment — the competitive dynamics of Nottingham's retail sector, the wholesale and distribution businesses across the region, and the specific commercial context in which Nottingham's e-commerce businesses operate. This local knowledge informs every BigCommerce project we deliver for Nottingham clients.

Transparent Pricing and Clear Communication

We provide clear, itemised project quotations with no hidden costs or surprise invoices. We communicate openly throughout every project — with regular progress updates, sprint reviews, and complete transparency about project status at every stage. You will never be left wondering what is happening with your BigCommerce build.

Long-Term Growth Partnership

Our most successful Nottingham clients are those who work with us as a long-term partner — not just for the initial BigCommerce build but for the ongoing optimisation, feature development, and strategic guidance that drives e-commerce growth month after month, year after year. We are invested in your success because our reputation is built on the commercial results we deliver.

BigCommerce for Nottingham's Key Business Sectors

BigCommerce serves a wide range of Nottingham business sectors particularly well:

Fashion and Apparel

Nottingham has a strong fashion and apparel heritage — and BigCommerce's native support for complex product variants, size guides, visual merchandising tools, and multi-currency selling makes it an excellent platform for Nottingham fashion retailers selling nationally and internationally. BigCommerce's integration with marketplaces including Amazon, eBay, and Google Shopping enables Nottingham fashion businesses to reach customers across multiple channels from a single platform.

Wholesale and B2B Distribution

The East Midlands is home to a substantial wholesale and distribution sector. BigCommerce's B2B Edition — with customer group pricing, purchase order management, net payment terms, and company account management — is the most capable SaaS B2B e-commerce solution available, making it ideal for Nottingham wholesalers and distributors wanting to launch or scale their online B2B channel.

Specialist and Niche Retail

Nottingham's independent and specialist retail sector — covering everything from sporting goods and outdoor equipment to health and wellness products, arts and crafts, and specialist food and drink — benefits from BigCommerce's exceptional product management capabilities, faceted search, and the ability to build distinctive, brand-aligned storefronts that stand out in competitive niche markets.

Manufacturing and Trade Supplies

East Midlands manufacturers and trade suppliers are increasingly using BigCommerce to launch direct-to-consumer and trade e-commerce channels — reaching customers nationally and internationally without the overhead of traditional sales channels. BigCommerce's multi-storefront capability allows manufacturers to run both a trade and a consumer storefront from a single platform.

Conclusion: Build Your Nottingham E-Commerce Success Story on BigCommerce

BigCommerce is the platform that Nottingham's most ambitious e-commerce businesses are choosing when they are serious about growth — when transaction fees are costing too much, when their current platform is holding them back, or when they need enterprise-grade capability without enterprise-grade complexity.

But the platform is only one part of the equation. The agency you choose to design, build, and grow your BigCommerce store is equally critical. A BigCommerce store built without commercial focus, conversion expertise, and technical depth will underperform regardless of how good the platform is.

Fulminous Software is the specialist BigCommerce agency in Nottingham that combines genuine platform expertise with a relentless commercial focus — delivering BigCommerce stores that genuinely perform, convert, and grow. Whether you are launching a new store, migrating from an underperforming platform, or wanting to accelerate the growth of an existing BigCommerce store, we are the partner that delivers results.

Ready to build your Nottingham business's e-commerce future on BigCommerce? Contact the Fulminous Software team today for a free, no-obligation consultation. We will discuss your business, your platform challenges, and your growth ambitions — and give you an honest recommendation on whether BigCommerce is right for you and what your project is likely to cost.

👉 Get Your Free BigCommerce Consultation — Contact Fulminous Software Today.

Frequently Asked Questions: BigCommerce Agency in Nottingham

1. What is a BigCommerce agency and what does it do?

A BigCommerce agency is a specialist e-commerce development company that designs, builds, migrates, and optimises online stores on the BigCommerce platform. Fulminous Software provides end-to-end BigCommerce services for Nottingham businesses — from initial store design and Stencil development through to platform migration, system integration, SEO, conversion rate optimisation, and ongoing support.

2. How much does BigCommerce development cost in Nottingham?

BigCommerce development costs for Nottingham businesses range from £2,000–£8,000 for theme customisation, £8,000–£25,000 for a professional store build, £25,000–£60,000 for an advanced platform with complex integrations, and £30,000–£100,000+ for headless BigCommerce development. Platform subscription costs range from £27–£5,000+ per month depending on your plan. Contact us for a free, itemised cost estimate.

3. How long does BigCommerce development take for a Nottingham business?

A theme customisation project typically takes 2–4 weeks. A professional BigCommerce store build typically takes 6–12 weeks. An advanced platform with complex integrations and B2B features typically requires 12–20 weeks. A headless BigCommerce implementation may take 16–28 weeks. Fulminous Software provides clear, realistic timelines at the outset of every project.

4. Can Fulminous Software migrate my existing store to BigCommerce?

Yes — platform migration is a core BigCommerce service. We manage complete migrations from Shopify, WooCommerce, Magento, PrestaShop, OpenCart, and legacy bespoke systems to BigCommerce — including product data, customer records, order history, and comprehensive URL redirect mapping to protect your Google search rankings. Enquire about BigCommerce migration today.

5. Is BigCommerce better than Shopify for Nottingham businesses?

For many Nottingham businesses — particularly those processing significant revenue volumes, running B2B operations, or needing advanced native features without transaction fees — BigCommerce is the stronger choice. BigCommerce has no transaction fees, more native features, better B2B capability, and stronger SEO architecture than Shopify. However, the right platform depends on your specific requirements. Fulminous Software provides honest platform recommendations based on your business needs.

6. Does BigCommerce work well for B2B businesses in Nottingham?

Yes — BigCommerce's B2B Edition is the most capable native B2B e-commerce feature set available on any SaaS platform. It includes customer group pricing, company account management, purchase order workflows, quote request systems, net payment terms, and shared shopping lists — making it an excellent choice for Nottingham wholesalers, distributors, and manufacturers selling online to trade customers.

7. What is headless BigCommerce and do Nottingham businesses need it?

Headless BigCommerce uses BigCommerce as the commerce engine whilst building a custom frontend in React or Next.js — delivering exceptional performance, design freedom, and omnichannel capability. Not every Nottingham business needs headless — but for businesses with ambitious performance targets, complex UX requirements, or multi-channel content needs, headless BigCommerce delivers measurably superior results. Fulminous Software can advise whether headless is right for your specific situation.

8. Can you integrate BigCommerce with our ERP or CRM system?

Yes — system integration is a core part of our BigCommerce development service. We connect BigCommerce stores with ERP systems (Sage, SAP, Microsoft Dynamics, Oracle), CRM platforms (Salesforce, HubSpot), marketing automation tools (Klaviyo, Dotdigital), warehouse management systems, fulfilment providers, and accounting software (Xero, QuickBooks). Deep integration transforms BigCommerce from a standalone storefront into a connected component of your business operations.

9. Do you provide ongoing BigCommerce support after launch?

Yes — Fulminous Software provides flexible BigCommerce support and maintenance packages for Nottingham businesses, covering ongoing development, app updates, performance monitoring, conversion optimisation, SEO, and technical support. We are your long-term BigCommerce growth partner — not just a build-and-disappear agency.

How do I get started with Fulminous Software for my BigCommerce project?

Getting started is straightforward. Contact Fulminous Software at fulminous.uk/contact-us to arrange a free, no-obligation BigCommerce consultation. We will discuss your business, your current platform, your requirements, and your growth ambitions — then provide a tailored recommendation and detailed project quotation with no pressure and no commitment required.