Synplex is an AI-driven inventory forecaster for Shopify that calculates True Velocity by excluding stockout days, fixing the broken average sales metric that causes the Inventory Death Loop. Start free trial or book a demo.
What is Synplex?
Synplex is a Shopify inventory management app that syncs with your store to analyze historical sales while automatically ignoring zero-sales days caused by stockouts. It takes your product catalog, supplier lead times, and landed costs as inputs and outputs purchase order recommendations and reorder alerts. The app is built specifically for Shopify by Synplex (available via the Shopify App Store) and can be set up in under an hour.
Key Features
- True Velocity Logic — Automatically identifies stockout periods in your sales history and calculates demand without those zero days, giving accurate reorder quantities.
- Purchase Order Engine — Create and send purchase orders to suppliers in minutes directly from the app; supports bulk generation.
- Smart Replenishment — Recommends reorder amounts based on True Velocity, lead times, and current stock levels; includes landed cost tracking.
- Supplier Management — Store all supplier contacts, lead times, and costs in one centralized place.
- Custom Reports — Request tailored inventory reports with flexible frequency (Growth and Enterprise plans).
- Quick Setup — Install from the Shopify App Store, sync products automatically, and be operational within 30 minutes.
- Seamless Shopify Integration — 1-click sync with your Shopify store for real-time stock data.
- Kitting & Production Orders — Available on Pro and higher plans for managing assemblies.
Who is it for?
- Small Shopify store owners (up to $100k annual revenue) who need basic PO automation and inventory reporting (Launch plan).
- Growing brands ($100k–$500k revenue) that require unlimited SKUs and demand planning (Starter plan).
- Scaling merchants ($500k–$5M) who need kitting, material management, and custom reports (Pro and Growth plans).
- High-volume businesses (over $5M) that require dedicated support and custom integrations (Enterprise plan).
What can you do with Synplex?
- Automate PO generation — Set up rules based on True Velocity and lead times, and generate purchase orders with one click.
- Prevent stockouts — Receive clear "Buy" signals based on actual demand, not flawed averages.
- Manage supplier relationships — Keep all supplier details and lead times in one dashboard, and email POs directly.
- Track landed costs — Automatically factor in shipping, duties, and other costs to maintain accurate profit margins.
How does Synplex work?
- Install the app from the Shopify App Store. It syncs your existing products and sales data automatically.
- Add your suppliers — input lead times, costs, and contact info to enable smart replenishment.
- Automate purchase orders — The forecasting engine analyzes your True Velocity and generates recommended reorder amounts. You can review and send POs in one click.
Pricing
Synplex offers five tiers, all billed via Shopify with a 30-day free trial:
- Launch — $9.99/mo for up to 200 SKUs and $100k annual revenue.
- Starter — $39/mo for unlimited SKUs and $500k revenue.
- Pro — $79/mo for stores up to $1.5M revenue, adds kitting and production orders.
- Growth — $139/mo for up to $5M revenue, includes custom reports and API access.
- Enterprise — $249/mo for stores over $5M, with dedicated support and custom integrations.
FAQ
How does Synplex integrate with Shopify?
Synplex connects via the Shopify App Store with a 1-click sync that imports your product catalog, sales history, and inventory levels automatically. No manual data entry required.
Can I try Synplex before committing?
Yes, every plan includes a 30-day free trial. You can start on the Launch plan and upgrade as your store grows.
What happens to my data if I cancel?
Your data remains accessible for a period after cancellation, and you can export it. The page does not specify exact retention terms.
What does Synplex do that Shopify’s built-in inventory can’t?
Shopify’s native inventory system lacks demand forecasting and purchase order automation. Synplex calculates True Velocity (excluding stockout days) and generates buy signals, which Shopify does not offer.
