OACE: A Shop That Keeps Up With One of Europe's Fastest-Growing Activewear Brands

OACE launches every two weeks and sells out within minutes. tante-e has created a technical shop foundation that supports the rapid development of the brand and does not slow it down.

Stability with 28,000 hoodies sold in under an hour
Performance with 230,000 sessions in a few hours
+25 launches maintained independently by the OACE team per year
+200 centrally controlled influencer codes
OACE x tante-e Case Study

„We need a stable shop that we can rely on for our bi-weekly launches. In addition to reliable performance, tante-e proactively supports us with shop optimization and the systematic implementation of our ideas."

Cindy Wieghardt

Head of E-Commerce & Performance Marketing, OACE

Project at a Glance

OACE x Aunt E

Relaunch: from an error-prone, historically grown setup to a modular Shopify Plus foundation with custom extensions
Scope: D2C online shop for women's and men's collections, multichannel thanks to its own mobile shopping app
Complexity drivers: bi-weekly launches with high traffic peaks and an extensive influencer discount system

Profile: OACE

OACE ist eine 2019 gegründete Sportswear-Marke, die Fitness und Fashion verbindet. Über Social Media und eine aktive Influencer-Community erreicht OACE monatlich rund 20 Millionen Menschen in Deutschland. Die Brand vereint Women- und Men-Sortiment in einem Shop, mit klarem Schwerpunkt auf der weiblichen Zielgruppe, und erwirtschaftet im D2C-Geschäft einen mittleren zweistelligen Millionenumsatz bei einem schlanken Team von rund 30 Mitarbeitenden. Seit 2024 arbeitet OACE mit tante-e als E-Commerce-Partner zusammen.

The starting position

Pain points:

OACE grew from around 3 million to around 23 million euros in revenue between 2021 and 2023. The online shop could not keep up with this pace. At that time, it was still not running on Shopify OS 2.0 and was prone to bugs in its day-to-day operations. Around the influencer discount codes, there were already individual, very specific special solutions, but these had grown in isolation and did not follow a uniform logic. Overall, marketing campaigns could only be implemented with great effort and were heavily dependent on external support. At the same time, the operational burden increased: OACE launches a new collection on average every two weeks. Each drop generates enormous short-term demand in the shop, for which the previous structure was not designed.

Aspiration:

OACE needed a clean, stable foundation that could reliably support campaigns and product drops. Central to their needs was the desire for greater independence: the team wanted to manage discounts, bundles, and launches themselves in the future, without relying on external development for every change. For influencer marketing, OACE required an intelligent, uniform discount logic that would function reliably even with several hundred active codes. Additionally, the shop needed to convey OACE's brand identity and appealingly address both female and male target groups within a single shop.

Expectations for tante-e as an agency:

OACE initially expected a clear recommendation to establish a structured foundation for the shop, rather than merely patching isolated problem areas. Instead of individual implementation tasks, tante-e was to act as an extended e-commerce team. OACE contributes the vision and requirements from daily operations, while tante-e translates them into robust technical solutions, incorporating its own experience – for example, when a customized approach is more sensible than a standard solution.

The Strategy

Request from OACE
Aunt E's performance
Request from OACE

The shop must handle every bi-weekly launch without failure

Aunt E's performance

Replacing Shopify Scripts with Shopify Functions to ensure stability of discount & cart logic under high traffic. Supplemented by a code freeze 48 hours before each launch, a clear rollback strategy, and the deactivation of traffic-prone third-party apps.

Request from OACE

Over 200 influencer codes are to remain constant for each partner, even though the discounted products change with each campaign.

Aunt E's performance

Replacement of grown individual solutions by a central, individually programmed discount logic. The codes remain stable, OACE centrally controls the discount rate and products in the backend.

Request from OACE

Discounts should be visible in the shopping cart and on category and product pages, not just during checkout, and remain combinable with bundles and strike-through prices.

Aunt E's performance

Consistent discount display throughout the entire customer journey, technically compatible with bundled discounts and reduced prices during sales.

Request from OACE

Unisex products should automatically appear with the appropriate model image depending on the target group, consistently from the menu to the shopping cart.

Aunt E's performance

Individually programmed Men/Women logic: The selected target group is retained throughout the entire customer journey, from the menu to the shopping cart; for unisex products, the shop automatically displays the appropriate model image.

Request from OACE

Combine bundles with up to three product dimensions across multiple products, including flexible, independently controllable discount logic

Aunt E's performance

Individually programmed Bundle Creator instead of the Shopify Bundles app, which reaches its limits with multiple combined variant dimensions.

Request from OACE

Reduce return rates in the textile sector, especially due to incorrect size selection

Aunt E's performance

Integration of Reviews.io with structured fit questions, model references and Leggings Guide on the product page, as well as the returns portal 8returns.

Project Phases

Highlights from the Collaboration with OACE

Strategic Sessions on the Thematic Foundation

In joint strategic sessions, tante-e analyzed OACE's grown, error-prone setup and recommended the Impact Theme as an established premium theme. Instead of a complete in-house development, OACE thus remains close to clean standard functions. Code adjustments are specifically used by tante-e where they are truly necessary.

Conception of the central discount logic

tante-e and OACE jointly defined the requirements for over 200 influencer codes and checked them against Shopify's standard functions. Based on this, tante-e outlined a custom-developed solution using Shopify Functions.

Joint appearance at the OMR Masterclass 2026

Cindy from OACE and Adrian from tante-e jointly presented their collaboration at the OMR. The Masterclass focused on how a robust Shopify foundation supports OACE's growth pace and how scalability, launch timing, and technical stability interact.

Kiosk system at FIBO

For FIBO, tante-e developed a dedicated shop instance for the exhibition stand, which visitors could access directly at the stand via a QR code. The checkout was fully designed for on-site pickup, and a display showed the order status in real-time via the Shopify Fulfillment API.

Phase 01

Concept phase

Phase 02

Material phase

Phase 03

Design phase

Phase 04

Implementation

Phase 05

Launch

Requirements Analysis
Analysis of the existing, evolved setup and definition of core requirements around drops, influencer integration, bundles, and discount logic.
Tool stack
Defining the tech stack with Reviews.io, 8returns, and Klaviyo as the foundation for the technical setup, in addition to native Shopify functionalities.
Shop architecture analysis
Definition of the shop structure, taking into account OACE's individual requirements.
Roadmap
Prioritizing a clean technical foundation over new features, with a clear sequence for subsequent implementation.
Product data and imagery
Preparation of the product data set and image assets for the women's and men's ranges as the basis for the new shop structure.
Discount code history
Preparation of existing, isolated, grown discount code special solutions as a basis for the new, central logic.
Styling & CI
Consistent implementation of OACE's brand identity in the new theme.
Wireframing
Conception of the central flows, including the Bundle Creator, individual password page, and the Men/Women logic on the product page.
Conception of theme customization
Building the modular theme foundation with clear component logic as a basis for future expansions.
System Integration
Integration of Reviews.io, 8returns, and Klaviyo with the new shop.
Programming
Individual discount logic via Shopify Functions, custom coded Bundle Creator, and consistent Men/Women logic.
Data Migration
Transfer of the existing product and customer database to the new structure.
Testing & QA
Load tests and testing of the discount and cart logic in view of the bi-weekly launch cadence.
Onboarding
Instruction of the OACE team on the password page, Bundle Creator, and discount management in the Theme Editor.
Growth Retainer
Transition to sprint-based, continuous shop development.
01 Concept phase
Requirements Analysis
Analysis of the existing, evolved setup and definition of core requirements around drops, influencer integration, bundles, and discount logic.
Tool stack
Defining the tech stack with Reviews.io, 8returns, and Klaviyo as the foundation for the technical setup, in addition to native Shopify functionalities.
Shop architecture analysis
Definition of the shop structure, taking into account OACE's individual requirements.
Roadmap
Prioritizing a clean technical foundation over new features, with a clear sequence for subsequent implementation.
02 Material phase
Product data and imagery
Preparation of the product data set and image assets for the women's and men's ranges as the basis for the new shop structure.
Discount code history
Preparation of existing, isolated, grown discount code special solutions as a basis for the new, central logic.
03 Design phase
Styling & CI
Consistent implementation of OACE's brand identity in the new theme.
Wireframing
Conception of the central flows, including the Bundle Creator, individual password page, and the Men/Women logic on the product page.
Conception of theme customization
Building the modular theme foundation with clear component logic as a basis for future expansions.
04 Implementation
System Integration
Integration of Reviews.io, 8returns, and Klaviyo with the new shop.
Programming
Individual discount logic via Shopify Functions, custom coded Bundle Creator, and consistent Men/Women logic.
Data Migration
Transfer of the existing product and customer database to the new structure.
Testing & QA
Load tests and testing of the discount and cart logic in view of the bi-weekly launch cadence.
05 Launch
Onboarding
Instruction of the OACE team on the password page, Bundle Creator, and discount management in the Theme Editor.
Growth Retainer
Transition to sprint-based, continuous shop development.

Implementation and Features

01

Modular Theme Foundation

The modular Shopify-Plus setup, based on the proven Impact Theme, replaces the accumulated, error-prone setup and forms the clean basis for all subsequent extensions.

02

Individual Discount Logic

Over 200 influencer codes remain constant for partners, while OACE centrally manages discount rates and discounted products in the backend, visible from the category page to the shopping cart.

03

Bundle Creator

An individually programmed configurator combines several products with up to three variant dimensions and allows OACE to independently determine which discount applies to which combination.

04

Men/Women Logic

For unisex products, the shop automatically displays the appropriate model image. The selection remains consistent from the menu to the category and product pages, all the way to the shopping cart.

05

Individual password page

An SEO-standalone password page with a countdown and wishlist teaser makes drops with early access for newsletter subscribers and app users independently controllable, entirely without a standard Shopify page.

01

Reviews.io

OACE uses Reviews.io to ask specific questions about fit and comfort beyond the classic star rating. The answers are directly incorporated into the product page and help customers choose the right size before ordering.

02

8returns

Via the returns portal, OACE handles exchanges and returns without each request manually landing in customer service. Customers start the process independently with their order number and email address.

03

Klaviyo

OACE synchronizes data from Reviews.io with Klaviyo to segment newsletter and app users, for example, for early access campaigns for highly sought-after drops.

04

Shopify Functions

The entire discount and cart logic runs on Shopify Functions instead of the previously used Shopify Scripts. This keeps discount calculations stable even during the peak loads of the bi-weekly launches.

01

Mobile Shopping App

Stikky Liquid Bridges directly mirror existing theme sections such as Countdown, USP icons, or Coming Soon tags into the mobile shopping app, instead of building and maintaining them twice. This gives OACE a second sales channel with push notifications and its own Early Access, without doubling the maintenance effort.

02

Internationalization

Individual language switcher with country flags, as well as translatable color swatches, category filters, and athletic club forms prepare the shop for further markets.

03

Leggings Guide

A guide based on Metaobjects leads customers to the right leggings variant based on sport and and area of use, thus reducing incorrect purchases in the particularly diverse product range.

04

Cart Gamification

A progress bar provides purchasing incentives and shows in the shopping cart how much is left until free shipping or a free gift, with different gifts depending on the sales channel.

The results

A mature, error-prone shop setup has become a resilient Shopify Plus foundation that keeps pace with OACE instead of slowing it down. The switch from Shopify Scripts to Shopify Functions exemplifies this: where the former discount logic reached its limits during heavy load peaks, today the discount and cart calculation runs reliably even during the biggest rush.

In the ongoing Growth Retainer, OACE and tante-e are continuously developing the shop. With the Mobile Shopping App, OACE has established another sales channel without additional maintenance effort, which strengthens ties with its own community. As a proactive sparring partner, tante-e helps to continuously tailor the shop to the needs of the team and the growing community.

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