Inventory Planner by Sage
Machine-learning demand forecasting and replenishment planning built for retail and e-commerce businesses.
Independent overview by new Mantra · updated July 16, 2026
- Category
- Operations
- Pricing
- Quote-based by volume of inventory managed; unlimited users included
- Implementation
- 2-4 weeks
- Adoption risk
- Low
- Integrates with
- Shopify, WooCommerce, BigCommerce, QuickBooks, Xero
What Inventory Planner by Sage does
Inventory Planner by Sage uses machine-learning models to forecast how much stock you'll need and when, accounting for seasonal patterns and new products. It turns those forecasts into purchasing recommendations, so buyers spend less time in spreadsheets and more time acting on reliable signals.
The platform connects to your e-commerce storefront, marketplace, and accounting solutions — including Shopify, WooCommerce, BigCommerce, QuickBooks, and Xero — pulling data together in one place. It also supports multi-warehouse operations, letting teams track and transfer stock across locations from a centralised view.
Higher-tier plans include Sage Copilot, an AI layer that flags priority and overdue replenishments so urgent buying decisions don't get buried. The vendor reports a 96% customer satisfaction score and offers 24/7 support, plus a dedicated account contact once you're live.
Key capabilities
ML-Driven Demand Forecasting
The solution applies machine-learning models to predict future sales, with specific handling for seasonal trends and new SKUs that lack long sales histories.
Automated Purchasing Recommendations
Based on forecasts, the platform generates buying suggestions — quantities and timing — to help teams avoid both stockouts and excess inventory.
Multi-Location Inventory Transfers
Retailers running more than one warehouse or store can use the platform to sync stock levels across locations and identify where transfers make sense.
Reporting and Analytics
The platform produces exec-level reports with automated summaries and supports customised views, with no restrictions on the number of users who can access reports.
Sage Copilot Replenishment Alerts
Available on Premium plans, Sage Copilot actively surfaces priority and overdue replenishments so critical actions aren't missed in a busy buying schedule.
Broad Platform Integrations
Pre-built connections cover major e-commerce platforms, marketplaces, inventory management systems, and accounting solutions, reducing the need for custom data work.
Best for
- Retail or e-commerce businesses on Shopify, WooCommerce, or BigCommerce that are outgrowing manual spreadsheet-based buying processes.
- Merchandising or buying teams managing high order volumes across multiple SKUs, where purchasing decisions currently consume significant staff time.
- Retailers operating across more than one warehouse or store location who need a centralised view of stock and transfers.
- Businesses with seasonal demand patterns or new product launches that make simple historical averaging unreliable for forecasting.
- Teams that want structured implementation support — the vendor offers guided onboarding and a dedicated customer success contact.
Worth knowing
- Inventory Planner does not publish prices: every plan is quoted on the volume of inventory you manage, with unlimited users included, so request a quote before comparing total cost.
- Implementation is estimated at two to four weeks on our assessment; the vendor's own site cites five to six weeks, so budget for at least a month before your team is fully operational.
- Sage Copilot — the AI-assisted replenishment alerting feature — is only included on the Premium tier, so businesses wanting that capability should factor the higher price point into their evaluation.
- The solution is purpose-built for retail and e-commerce; if your business operates in a different industry or has highly non-standard supply chain structures, the fit may be limited.
- Pricing scales with GMV on upper tiers, which means costs will rise as your revenue grows — worth modelling against your projected growth before committing.
Related solutions
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