CASE STUDY · FASHION · BIGCOMMERCE

Prissy Duck BigCommerce V2 to V3 Upgrade and Cornerstone Stencil Theme Migration

Prissy Duck model in a red jumpsuit, banner for the BigCommerce V2 to V3 upgrade case study
Quick Answer

QUICK SUMMARY

Prissy Duck, a fashion brand for tall women, ran its BigCommerce store on an outdated V2 backend with a paid theme that generated SCSS compatibility warnings, and its product pages could not support videos or richer media. WebDesk Solution upgraded the store from BigCommerce V2 to V3, moved it to the Cornerstone Light theme and retained store data. Reported results: customers up 16.39%, visits up 21%, orders up 2.08% and revenue up 5.19%.


The Context

Overview

Prissy Duck, founded by Stephanie Foster, is a fashion brand committed to serving tall, fashion-forward women. Recognizing firsthand the challenge of finding stylish clothing for taller frames, Stephanie combined her passion for fashion and personal experience to launch Prissy Duck. Offering unique designs suitable for work, nights out, and cocktail events, the brand’s mission is clear: make every woman feel beautiful, confident, and empowered.

By the time Prissy Duck approached WebDesk Solution, its BigCommerce store was running on an outdated V2 backend paired with a paid theme that had started generating SCSS compatibility warnings, and its product pages could not support embedded videos or richer product media.

WebDesk Solution was engaged to upgrade Prissy Duck from BigCommerce V2 to V3, migrate the storefront to a compatible Stencil theme, and retain store data through the transition.

Technical Approach

Approach

When Stephanie reached out to WebDesk Solution, she initially sought assistance with standard customization and maintenance tasks under our retainer model. However, our team quickly identified deeper issues: Stephanie’s store was operating on an outdated BigCommerce V2 backend paired with an incompatible theme. WebDesk Solution experts Daniel and Kevin conducted a detailed consultation, clearly outlining the limitations of her existing setup and emphasizing the necessity and benefits of upgrading to BigCommerce V3 and the latest Cornerstone theme. Reassured by our transparent approach and technical expertise, Stephanie confidently entrusted WebDesk Solution to perform the full upgrade.

The engagement expanded from routine customization support into migration planning, theme compatibility assessment, and full BigCommerce upgrade execution.

Challenges

What challenges did Prissy Duck face before moving from BigCommerce V2 to V3?

Before the upgrade, Prissy Duck’s BigCommerce store ran on an outdated V2 backend paired with a paid theme that was generating SCSS compatibility warnings. That setup left the brand with three problems: storefront pages that could not carry interactive media, a theme that put site stability at risk, and a V2 platform that blocked the advanced features the brand wanted.

01

Prissy Duck’s homepage and product pages could not carry interactive media

Prissy Duck’s website needed significant upgrades to meet contemporary eCommerce standards, particularly in multimedia integration and responsive design. Their homepage lacked dynamic content like interactive slideshows, impacting user engagement. Moreover, product pages were limited, unable to support interactive features like embedded videos or intuitive scrolling of product images. This affected both user experience and conversion rates. Any new interactive elements also had to work on both mobile and desktop without sacrificing site performance or usability.

02

Prissy Duck’s outdated paid theme was generating critical SCSS warnings

The outdated paid theme Stephanie initially chose for Prissy Duck started generating critical SCSS warnings on BigCommerce, signaling imminent breakdowns. The theme had not been kept up to date, and that lack of updates had left extensive compatibility issues. This posed significant risks to the website’s stability, potentially harming the brand’s reputation and customer trust. Prissy Duck also had to avoid downtime and data loss and stay compliant with BigCommerce’s latest technological standards.

03

Prissy Duck’s BigCommerce V2 setup could not support the advanced features the brand wanted

Stephanie faced significant roadblocks due to limitations inherent in BigCommerce V2. She wanted advanced functionalities, like product videos and sophisticated customizations, but the existing platform lacked the necessary capabilities. Repeated attempts to implement these features failed, negatively impacting user engagement and Stephanie’s confidence in her digital storefront. Any move from V2 to V3 had to happen without disrupting Prissy Duck’s ongoing business operations.

Performance Metrics

Key Metrics

Increase Customers - Prissy Duck
16.39%
Increase Customers
Increase Visits - Prissy Duck
21%
Increase Visits
Increase Orders - Prissy Duck
2.08%
Increase Orders
Increase Revenue - Prissy Duck
5.19%
Increase Revenue

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Solutions

How did WebDesk Solution solve Prissy Duck’s BigCommerce V2 to V3 challenges?

WebDesk Solution answered each challenge with one piece of work: richer product media on the upgraded storefront, a move to the BigCommerce Cornerstone theme with a CSS to SCSS rewrite, and a tested, staged upgrade from BigCommerce V2 to V3.

1

WebDesk Solution brought 360-degree product images and videos to Prissy Duck’s storefront

Once Prissy Duck’s store was running on BigCommerce V3 with the new theme in place, we delivered the multimedia integration the brand had been unable to add on V2, including 360-degree product images and videos on its product pages.

Key deliverables:

  • 360-degree product images: added to Prissy Duck’s product pages once the store was running on BigCommerce V3.
  • Product videos: embedded on product pages, a feature the earlier V2 setup could not support.
  • Dynamic product presentation: richer product displays on pages that previously lacked dynamic content.
  • Cross-device storefront: the new media and pages work on both mobile and desktop.
  • Result: a multimedia-rich storefront with seamless compatibility across devices and dynamic product presentations.

2

WebDesk Solution moved Prissy Duck to the BigCommerce Cornerstone theme and rewrote its styles in SCSS

To address the theme-related challenges, WebDesk Solution executed a meticulous upgrade to the BigCommerce Default Cornerstone Light theme. Our specialists first mapped the entire transition process, identifying key elements for seamless migration. We conducted an exhaustive design compatibility review and successfully migrated existing designs, pages, and custom features. Transitioning CSS to SCSS, we carefully rewrote the entire codebase, proactively resolving compatibility issues. This detailed approach brought the storefront in line with contemporary eCommerce standards.

Key deliverables:

  • Transition map: the full theme transition was mapped first, identifying the key elements to carry over.
  • Design compatibility review: an exhaustive review of the existing designs ran before anything was migrated.
  • BigCommerce theme customization carried over: existing designs, pages and custom features were migrated to Cornerstone Light.
  • CSS to SCSS rewrite: the entire theme codebase was rewritten, resolving compatibility issues along the way.
  • Result: compatibility issues resolved and Prissy Duck’s storefront brought in line with contemporary eCommerce standards.
Prissy Duck mobile storefront on the Cornerstone Stencil theme: homepage slideshow and a product page

3

WebDesk Solution ran a tested, staged upgrade of Prissy Duck’s store from BigCommerce V2 to V3

To unlock advanced functionality, our team orchestrated a precise upgrade from BigCommerce V2 to V3. Initially, we conducted comprehensive data reviews to detect anomalies and prepared detailed migration reports. Through rigorous testing, data anomalies were resolved, followed by successful test migrations. Stephanie was given access to a staging store for thorough validation. On migration day, our technical experts executed a well-planned sequence: pausing store activities, displaying maintenance notifications, then carefully removing and reinjecting data. Post-upgrade validations guaranteed functionality and data integrity.

Key deliverables:

  • Data review: comprehensive reviews detected anomalies in the store data and produced detailed migration reports.
  • Test migrations: anomalies were resolved through rigorous testing before successful test migrations were run.
  • Staging validation: Prissy Duck’s founder was given access to a staging store for thorough validation before migration day.
  • Migration-day sequence: store activities were paused, maintenance notifications shown, and data removed and reinjected.
  • Result: post-upgrade validations checked functionality and data integrity, and store data was retained through the transition.

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Outcomes

What business results followed Prissy Duck’s BigCommerce V3 upgrade?

A modern, multimedia-rich, cross-device storefront

The upgrade transformed Prissy Duck’s online store, delivering measurable improvements.


  • 16.39% increase in customers after the upgrade.
  • 21% increase in website visits after the upgrade.
  • 2.08% increase in orders after the upgrade.
  • 5.19% increase in revenue after the upgrade.
  • Cross-device storefront: seamless compatibility across devices, dynamic product presentations and a platform ready to scale.
Project Conclusion

Conclusion

The Prissy Duck upgrade shows that when a store is held back by both its platform version and its theme, fixing one without the other leaves the problem in place. Moving from BigCommerce V2 to V3 made room for product videos and 360-degree product images, and a compatible Cornerstone Light theme rewritten in SCSS gave that media a stable home on mobile and desktop. Data reviews, test migrations and a staging store let the founder validate the new store before migration day. For any brand on an outdated setup, the lesson is to plan the platform upgrade, the theme and the data checks as one project.

PROJECT Q&A

Questions About Prissy Duck’s BigCommerce V2 to V3 Migration

Who is Prissy Duck, and what does its BigCommerce store sell?
Prissy Duck is a fashion brand committed to serving tall, fashion-forward women. Its founder launched the brand after finding it hard to buy stylish clothing for taller frames, and the store offers unique designs for work, nights out and cocktail events. The BigCommerce storefront needed richer product media and a stable theme, which led to the upgrade described on this page.
How did Prissy Duck’s maintenance retainer turn into a BigCommerce V2 to V3 upgrade?
Prissy Duck’s founder first asked for standard customization and maintenance help under a retainer. During that work, the WebDesk Solution team found the store was running on an outdated BigCommerce V2 backend with an incompatible theme. A detailed consultation set out the limits of that setup and the case for moving to BigCommerce V3 and the latest Cornerstone theme, and the founder approved the full upgrade.
Why did Prissy Duck need more than a BigCommerce theme update?
A theme update alone would not have solved Prissy Duck’s problems. The outdated paid theme was generating critical SCSS warnings because it had not been updated, and the store’s BigCommerce V2 setup could not support features the brand wanted, such as product videos and sophisticated customizations. Both the theme and the platform version had to change for the storefront to carry richer media.
What did Prissy Duck’s move to the Cornerstone Light theme carry over from the old store?
The team first mapped the whole transition and ran an exhaustive design compatibility review. It then migrated Prissy Duck’s existing designs, pages and custom features to the BigCommerce Default Cornerstone Light theme. The theme code was rewritten from CSS to SCSS during the move, resolving the compatibility issues the old paid theme had caused.
How did Prissy Duck check its upgraded store before migration day?
Comprehensive data reviews looked for anomalies in Prissy Duck’s store data and produced detailed migration reports. The anomalies were resolved through rigorous testing, followed by successful test migrations. Prissy Duck’s founder was then given access to a staging store to validate the upgraded site before the live store data was moved.
What happened to Prissy Duck’s store on migration day?
Migration day followed a planned sequence. Store activities were paused, maintenance notifications were displayed, and Prissy Duck’s store data was carefully removed and reinjected into the upgraded BigCommerce V3 store. Post-upgrade validations then checked functionality and data integrity, so the store data was retained through the transition.
Which product media could Prissy Duck add after moving to BigCommerce V3?
After the upgrade, Prissy Duck’s product pages could carry 360-degree product images and product videos, which the earlier V2 setup could not support. The storefront also gained dynamic product presentations and seamless compatibility across mobile and desktop, the gaps that had been impacting user engagement on the old homepage and product pages.
What results did Prissy Duck report after the BigCommerce V3 upgrade?
Prissy Duck reported that customers increased by 16.39%, website visits by 21%, orders by 2.08% and revenue by 5.19% after the upgrade. Alongside those figures, the store moved to a multimedia-rich, cross-device storefront with dynamic product presentations, running on a platform ready to scale.
Prissy Duck tall women’s clothing banner with a model in an orange maxi dress

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