How 21st Century Vitamins Streamlined Their Workflow With a Shopify Plus Migration

TL;DR

What We Shipped

21st Century Vitamins had outgrown a legacy custom CMS that offered little real eCommerce capability and forced manual work for fulfillment, inventory, and tax. Fyresite migrated them to Shopify Plus and wired it into their Sage X3 ERP, turning what was largely a reference catalog into a scalable direct-to-consumer store with automated operations running behind it.

Migrated to Shopify Plus

A legacy custom CMS replaced with a fast, mobile-optimized DTC store on a certified theme.

Sage X3 ERP integration

Inventory, orders, tracking, and accounting kept in sync between Shopify and the ERP in real time.

Automated operations

Manual fulfillment, inventory, and tax processes replaced with automated workflows.

Dedicated Pet line

Custom product and collection design with its own navigation brought pet products onto the main store.

Tax automation

Vertex calculates sales tax at checkout across the full multi-category catalog.

Marketing and sales channels

Klaviyo, reviews and loyalty, and social plus Google Shopping connectors wired into the store.

Premier wellness company needed a store that could handle their robust collection.

Industry

Health & Wellness
Healthcare
Homegoods & Retail Brands

Services

Custom CMS to Shopify Plus Migration
Shopify Plus Redesign

The Problem

21st Century Vitamins faced significant operational hurdles due to a legacy custom-built CMS that offered limited eCommerce functionality.

The brand was enriching third-party marketplaces because it lacked a robust Direct-to-Consumer (DTC) platform to capture and retain ROI on its own marketing spend.

Internally, they struggled...

21st Century Vitamins faced significant operational hurdles due to a legacy custom-built CMS that offered limited eCommerce functionality.

The brand was enriching third-party marketplaces because it lacked a robust Direct-to-Consumer (DTC) platform to capture and retain ROI on its own marketing spend.

Internally, they struggled with a lack of automated workflows, relying on manual processes for order fulfillment, inventory updates, and tax calculations.

Furthermore, the brand’s digital presence was fragmented. Their Pet Products line was not available on the main store, and existing systems could not provide real-time analytics or scalability required for modern growth.

This wasn’t sustainable for their business goals. They needed a new platform that could provide scalable solutions and automated workflows.

The Solution

Fyresite orchestrated a comprehensive migration to Shopify Plus to establish a high-performing, mobile-optimized DTC store that serves as both a retail outlet and a reference catalog for distributors.

To solve the fulfillment and data accuracy issues, we integrated the Sage X3 ERP as the “source...

To solve the fulfillment and data accuracy issues, we integrated the Sage X3 ERP as the “source of truth,” enabling bidirectional synchronization of order information and real-time updates for inventory and shipping tracking.

The redesign included the creation of custom page templates and specialized navigation for the Pet Care line to unify the brand experience.

It also automated essential business logic (such as tax calculations via Vertex to personalized marketing through Klaviyo) and expanded sales reach by integrating native connectors for TikTok, Instagram, and Google Shopping.

Now, they’re positioned to repatriate ROI from third-party marketplaces and scale its fulfillment operations efficiently through a centralized digital ecosystem

Custom Features

What we engineered

Sage X3 ERP Integration

A custom integration keeps Sage X3 as the source of truth: inventory and tracking flow from Sage to Shopify, order data runs bidirectionally, and accounting data posts from Shopify back to Sage.

AWS Proxy Application

The ERP sync runs through a custom AWS-hosted proxy app that brokers data between Shopify and Sage X3 in the client's preferred JSON format.

Collection-Driven PDP System

Up to 20 PDP child themes shift color, background, and badging automatically from a product's collection or tag, giving each supplement category its own look without separate builds.