Some tools plan demand. Others plan supply. On paper they're different: one forecasts what you'll sell, the other makes sure you have enough stock to sell it.
In practice, the data overlaps constantly. Your forecast drives your reorder quantity. Your lead time shapes when the PO needs to go out. Your stock position determines whether that's today or next week. You need both sides of the equation to make smarter inventory decisions.
The best tools treat demand and supply as one loop, not two separate workflows. Most don't.
We cover the eight best demand and supply planning tools for Shopify brands in 2026, compared honestly by what they actually do.
What Shopify Gives You for Demand and Supply Planning (And Where It Stops)
Shopify covers the basics: real-time inventory tracking, sales data, stock levels, and simple sales velocity reports. For early-stage stores, that may be enough.
Where it stops is planning.
Shopify doesn’t forecast future demand, recommend reorders based on lead times or safety stock, or create purchase orders automatically. Those are supply planning tasks, and they usually need a dedicated tool.
The tools below fill that gap, from lightweight Shopify add-ons to full demand and supply planning platforms with forecasting, PO management, and accounting integrations.
The 8 Best Demand and Supply Planning Tools for Shopify in 2026
Choosing a planning tool should not feel like comparing 50 tabs of features. So we did the hard work for you so you can keep it simple; eight demand and supply planning tools for Shopify brands, what they’re best at, and who should use them.
1. Prediko
Prediko is the strongest demand and supply planning tool built specifically for ecommerce. It connects directly to Shopify, reads your sales history across all channels, and uses AI to forecast demand at the SKU level, adjusting for seasonality, promotions, supplier lead times, and growth trends.
What sets Prediko apart from is it closes the full planning loop in one place. Most tools forecast and stop. Prediko takes the forecast, generates and places the purchase order, and syncs it directly to your accounting tools.
The forecasting model is trained on more than 25 million SKUs that improve the forecast accuracy. It also supports raw materials and production planning via bill-of-materials, making it one of the few Shopify-native tools that handles brands with manufacturing complexity.
Key features
- AI demand forecasting adjusted for seasonality, trends, promotions, and revenue targets
- AI-supply planning with a PO calendar for the entire year
- Automated transfer and reorder recommendations with supplier lead times built in
- Purchase order creation, tracking, sharing and receipt
- Real-time stockout and overstock alerts via Slack, WhatsApp, or email (via Pia, Prediko's AI inventory agent)
- Raw materials and production planning via BOM support
- 100+ integrations with WMS, 3PLSs, and ecommerce platforms
- Unlimited SKUs and users on all plans
Pros
- Fast onboarding; most brands are live within hours
- Handles complex variants and bundles across channels
Cons
- Some integrations are not fully developed
Pricing: Prediko offers tiered pricing based on your store’s revenue. Plans start at just $49/month. All plans include unlimited SKUs, purchase orders, and users.
2. Inventory Planner by Sage
Inventory Planner is a renowned name in ecommerce demand forecasting. It's strong on replenishment planning and gives you detailed control over forecasting parameters.
The trade-off: it's built for complexity. Smaller teams often find it harder to set up than expected, and pricing scales with sales volume in ways that can surprise you at renewal.
Key features
- Demand forecasting with detailed parameter control
- Replenishment planning across Shopify, Amazon, and wholesale channels
- Multi-currency and multi-location support
- Integrations with 30+ platforms, including NetSuite and WooCommerce
- Purchase order creation and supplier management
Pros
- Forecasting logic is reliable and the interface makes it easy to turn data into POs
- Highly responsive support team
Cons
- Customers report that pricing can feel steep for smaller businesses
- Occasional delays in syncing data from ecommerce platforms, requiring careful monitoring
Pricing: Available on request
3. Cogsy
Cogsy takes a different approach to forecasting. Instead of just projecting from historical data, it lets you model scenarios: what does your inventory position look like if growth accelerates, if a product goes viral, or if a supplier delays?
That makes it genuinely useful for brands that need to plan months ahead, not just weeks.
Key features
- Scenario-based demand planning with what-if modelling
- Revenue-driven inventory coverage forecasting
- Automated replenishment recommendations
- Vendor order automation
- Clean Shopify-native interface
Pros
- Forward-looking scenario planning
Cons
- Limited review volume on Shopify App Store
- Focused on planning and coverage rather than full PO management and accounting integration
Pricing: Starts around $199/month
4. Flieber
Flieber is built for brands selling across Shopify, Amazon, and wholesale simultaneously. It handles demand planning at the channel level, so you can see how inventory should be allocated across platforms rather than managing each channel separately.
Key features
- Channel-level demand planning across Shopify, Amazon, and wholesale
- Inventory allocation across locations and platforms
- Lead time modelling and supplier management
- Supply planning with reorder triggers per channel
- Multi-warehouse visibility
Pros
- Accurate multi-channel forecasting with no extra charge per integration, warehouse, or store
- Support team builds custom solutions for complex inventory configurations
Cons
- Steep learning curve given the complexity of the platform
- Lead times are static and must be adjusted manually when suppliers change
Pricing: Custom, contact for pricing.
5. Cin7
Cin7 is more than a planning tool. It's a full inventory management platform with demand planning, purchase order management, warehouse management, and multi-location tracking all built in.
If your operation has outgrown a pure planning layer and you need to manage stock across warehouses, 3PLs, and retail locations in one system, Cin7 is worth evaluating.
Key features
- Full inventory management with built-in demand planning
- Purchase order management and supplier tracking
- Warehouse management and 3PL integration
- Multi-location stock tracking and transfers
- Integrations with Shopify, Amazon, Xero, and major ERPs
Pros
- Shopify and Xero integrations save significant time
- Comprehensive feature depth covering inventory, warehouse, and order management
Cons
- Customer support responsiveness is the most consistently cited complaint
- Implementation is complex and time-consuming; expect 2 to 8 weeks minimum
Pricing: From around $349/month. Implementation costs apply.
6. Fabrikatör
Fabrikatör is a Shopify-native planning tool that covers the basics well. It's less sophisticated than Prediko or Inventory Planner on the AI side, but more affordable and faster to set up.
Key features
- Demand forecasting based on sales history
- Replenishment recommendations with reorder point alerts
- Purchase order creation and tracking
- Shopify-native integration with real-time sync
- Basic supplier management
Pros
- Intuitive interface with strong onboarding support
- Solid preorder and backorder management
Cons
- Some promised features have had reliability issues for certain users
- Forecasting depth is less sophisticated for brands with complex demand patterns
Pricing: From $99/month
7. Streamline
Streamline is an enterprise-grade autonomous demand planning platform with Shopify integration. It's built for manufacturers, retailers, wholesalers, and distributors operating at scale, with more than 200 implementation partners worldwide.
It's significantly more capable than the other tools on this list on the supply chain planning and S&OP side.
Key features
- Promotional uplift modelling for retail and wholesale channels
- Seasonal demand adjustment and trend detection
- Sell-through tracking at the retail partner level
- Collaborative forecasting with trading partners
- Integration with major ERPs and retail systems
Pros
- Raises purchasing signals per supplier rather than per SKU
- 200+ implementation partners worldwide with strong CPG and wholesale track record
Cons
- Enterprise pricing and complexity put it out of reach for most Shopify brands without dedicated planning teams
- Implementation requires significant time investment
Pricing: Custom enterprise pricing
8. StockTrim
StockTrim connects to Shopify to automatically forecast demand, recommend optimal order quantities, and generate purchase orders. It's positioned as a lightweight, accessible option for merchants who want clean reorder recommendations without a complex setup.
It handles variant-level forecasting (colour and size), multi-location planning, and new product simulation. Less capable for brands with complex supplier networks or high SKU counts.
Key features
- Demand forecasting by variant (colour and size)
- New product simulation for items without sales history
- Multi-location stock planning
- Automated purchase order creation
Pros
- Clear and insightful reporting
- Instant support and helpful follow-up during onboarding
Cons
- Very limited public reviews
- Starter plan pricing has been reported as higher than initially advertised
Pricing: Tiered plans from around $39/month based on SKU count.
What to Look for in a Shopify Demand and Supply Planning Tool
Before you shortlist any tool, there are five things you should ask the vendor or check during your research.
Question #1: Does it connect to Shopify natively?
Not via CSV. Not via a sync you have to trigger manually. The tool should pull your sales and inventory data directly, in real time. If it doesn't know what sold today, the recommendations it gives you tomorrow are already inaccurate.
Question #2: Does it forecast at the SKU level?
Aggregate forecasts are almost useless for operational decisions. Knowing that demand is up 10% across your catalog doesn't tell you which SKUs to reorder, which to hold, and which are about to run dry.
You need forecasts per product, per variant, adjusted for seasonality, trends, and any promotions you're running.
Question #3: Does it factor in your lead times?
This is where a lot of tools fall short. A reorder recommendation is only useful if it accounts for how long your supplier actually takes to deliver. A tool that tells you to order 200 units but doesn't tell you that you needed to place that order three weeks ago isn't helping. Lead times should be built into every recommendation.
Question #4: Does it go all the way to the purchase order?
Forecasting tells you what to buy. But there's a gap between knowing what to buy and actually getting the PO out to your supplier.
The best tools close that loop: they generate the PO, let you send it directly to your supplier, and track it through to receipt. Anything short of that means you're still doing part of the job manually.
Question #5: How fast can you get it running?
Most Shopify brands don't have a dedicated planning team. They have a founder, an ops person, maybe a small buying team.
A tool that takes months to implement and requires specialist configuration isn't realistic for most operations. Setup should be completed in days, not quarters.
Which Demand and Supply Planning Tool Is Right for Your Store?
The honest answer: it depends on your complexity and where your current process is breaking down.
- You're a Shopify brand that needs forecasting and automated POs. Use Prediko. It closes the full demand-to-PO loop natively, syncs to accounting tools. If you're earlier stage and budget-conscious, Prediko, Fabrikatör or StockTrim are good options.
- You need forward-looking scenario planning to model inventory at different growth rates or supply disruptions. Cogsy was built for exactly that.
- You're selling across Shopify, Amazon, and wholesale with allocation headaches. Add Flieber or Inventory Planner to your shortlist alongside Prediko.
- You've outgrown a pure planning layer and need to manage multi-location stock, wholesale orders, or light manufacturing from one system. Cin7 is the right step up.
- You're an enterprise Shopify brand with dedicated planning teams and complex supply chain operations. Streamline handles the S&OP depth you need.
- You relied on Stocky. Move to Prediko. Shopify-native, live on the App Store, covers everything Stocky handled plus significantly more. The deadline is August 31, 2026.
Real Cost of Getting This Wrong
The financial impact of choosing the wrong demand and supply planning tool is direct and measurable.
A stockout on your best-selling SKU during peak season doesn't just lose that sale. It loses the customer to a competitor and can tank your ranking on Shopify search and Amazon. An overstock position ties up cash in slow-moving inventory, eats into your margin, and often ends in a discount that hurts your brand positioning.
The impact of better inventory planning compounds quickly. Most brands using AI-powered demand and supply planning for Shopify report reducing stockouts by 30 to 50% and cutting excess inventory within the first few months.
That's exactly what Prediko is built to do. If you're evaluating options or replacing Stocky before the August deadline, start a free 14-day trial as its the most logical starting point.
Frequently Asked Questions
What is the difference between demand planning and supply planning?
Demand planning forecasts what you'll sell. Supply planning makes sure you have the stock to sell it. In practice they're the same loop: your forecast drives your reorder quantity, and your lead time determines when the PO goes out.
What is the best demand and supply planning tool for Shopify?
Prediko for most Shopify brands: SKU-level AI forecasting, automated POs, and Xero sync in one tool. For heavy Amazon or wholesale volume, add Flieber or Inventory Planner to your shortlist.
Does Shopify have built-in demand planning?
No. Shopify tracks inventory and reports on sales but doesn't forecast demand, generate reorder recommendations, or create purchase orders. Those need a third-party inventory management app.
How do demand planning tools handle seasonality?
They analyse your historical sales data to identify patterns and adjust forecasts accordingly. Prediko's AI accounts for seasonal spikes, promotional lifts, and trend direction so recommendations reflect what you're likely to sell next, not just a recent average.
How much do demand and supply planning tools cost?
Demand and supply planning tools range from $49/per month to $999/per month, depending on your store size, SKU count, number of locations, integrations, and planning complexity.
