Inventory Planner by Sage
by Sage (Inventory Planner) · Demand & Supply Planning
Demand forecasting and replenishment for retail and ecommerce inventory.
Updated August 2026 · By the ERP Research Editorial Team · Independent and vendor-neutral.
- Works with
NetSuiteQuickBooks
Microsoft Dynamics 365
Acumatica
Brightpearl by SageCin7UnleashedLinnworks+4 more- Deployment
- Cloud
- Company size
- SMB, Mid-market
- Pricing
- Subscription; consultative pricing scaled by GMV and replenishable SKU count
- Founded
- 2012
Overview
Inventory Planner by Sage is a cloud-based demand forecasting and inventory optimization platform aimed at retail, ecommerce, and wholesale businesses. It analyzes historical sales, sales velocity, seasonality, and promotional cycles to predict future demand, then translates those forecasts into specific purchasing recommendations: what to buy, how much, and when. The product positions itself between a merchant's sales channels (such as Shopify, Amazon, and BigCommerce) and its inventory or accounting system of record (such as NetSuite, QuickBooks, Brightpearl, Cin7, or Microsoft Dynamics 365), pulling order and stock data to drive replenishment decisions.
The platform supports SKU-level and supplier-level planning across multiple warehouses and inventory types, including brick-and-mortar stores, Amazon FBA, and third-party logistics (3PL) locations. Beyond core replenishment, it includes open-to-buy budget planning, inventory segmentation, overstock identification, and warehouse transfer recommendations. Reporting and dashboards surface retail-focused metrics, and the Premium tier adds Sage Copilot, an AI assistant for prioritization, alongside advanced product analytics.
Originally launched in 2012 as an independent product, Inventory Planner was acquired by Brightpearl in 2021, which Sage acquired in 2022, bringing the product under the Sage portfolio. It is used by retailers and wholesalers spanning apparel, beauty, sporting goods, furniture, and jewelry, with the vendor citing more than 2,600 brands on the platform. Pricing is consultative and scales with gross merchandise volume (GMV) and replenishable SKU count, though a lower Essentials tier is available to Shopify-only sellers through the Shopify App Store.
Screenshots & demo
Demo video from the vendor's YouTube channel. Screenshots sourced from Sage (Inventory Planner).
Modules & capabilities
Inventory Planner by Sage covers 20 of 62 capabilities we track in this category (+3 partial)
32%- Statistical & machine-learning forecastingSupported
- Automatic best-fit model selectionOne forecasting method can be applied per SKU, not multi-model blendingPartial
- Demand sensingNot evidenced
- Outlier & anomaly detectionNot evidenced
- Seasonality & trend detectionSupported
- New-product / cold-start forecastingSupported
- Promotion & event demand modelingSupported
- Forecast accuracy & bias reportingNot evidenced
- Causal & external-signal modelingSupported
- Probabilistic / range-based forecastingNot evidenced
“Not evidenced” means our research found no public documentation of this capability — the vendor may still offer it. Confirm on a demo.
Common use cases
- Forecasting demand for seasonal retail and ecommerce assortments
- Generating automated purchase order recommendations to avoid stockouts
- Planning replenishment across multiple warehouses and 3PL locations
- Managing open-to-buy budgets for merchandising teams
- Identifying and liquidating overstock to free up working capital
- Predicting demand for newly launched products from similar-item data
- Coordinating purchasing across suppliers with minimum order quantities
Strengths & considerations
Strengths
- Purpose-built for retail/ecommerce demand planning rather than general ERP inventory
- Broad library of prebuilt connectors across ecommerce, ERP/inventory, and 3PL systems
- Open-to-buy budget planning aimed at merchandising and buying teams
- Sits as a planning layer on top of an existing ERP or accounting system of record
- Lower-cost Essentials tier available to Shopify-only sellers
Considerations
- Only one forecasting method can be applied per SKU; methods cannot be combined
- Initial setup and data syncing can be complex and occasionally error-prone per user reviews
- Pricing scales with GMV and SKU count and can be a significant investment for smaller businesses
- Consultative pricing means most tiers are not publicly listed
- Some users reported support quality concerns following the acquisition
Used Inventory Planner by Sage with your ERP? Rate it in 30 seconds — it helps every buyer after you.
Rate itERP integrations
Native NetSuite integration listed on Inventory Planner's integrations page.
Native QuickBooks integration listed on the integrations page.
Native Microsoft Dynamics 365 integration listed on the integrations page.
Native Acumatica integration listed on the integrations page.
Connector details independently verified against vendor marketplaces and documentation; last checked 2026-08-11.
Pricing
Full Inventory Planner by Sage pricing breakdown — cost at 25/100/500 seats, competitor rates & FAQs
Most tiers are quote-based via direct sales. An Essentials tier is available to Shopify-only single-warehouse sellers through the Shopify App Store. Standard includes core forecasting and replenishment; Premium adds Sage Copilot and the Option Insights Report. Publicly cited figures vary by source and are not confirmed on the vendor's main pricing page. Get an independent shortlist with pricing guidance below.
What does Inventory Planner by Sage cost?
Inventory Planner by Sage prices by quote, like most of this category. Here is what actually drives your number — and what to ask before you get one.
9 of the 15 vendors we track in this category publish no list price at all.
Technical & security
- Hosting
- Vendor-hosted SaaS
- Compliance
- GDPR, CCPA
- Mobile app
- No
About the vendor
- Founded
- 2012
- Ownership
- Sage (acquired via Brightpearl, 2022)
Alternatives to Inventory Planner by Sage in Demand & Supply Planning
Inventory Planner by Sage — frequently asked questions
Does Inventory Planner replace my ERP or accounting system?
No. It is a demand planning and replenishment layer that connects to an existing system of record such as NetSuite, QuickBooks, Brightpearl, Cin7, or Microsoft Dynamics 365, pulling sales and stock data to generate forecasts and purchase recommendations.
Which platforms does it integrate with?
It offers prebuilt connectors across ecommerce and marketplaces (Shopify, Amazon, BigCommerce, WooCommerce, eBay, Walmart and others), ERP/inventory systems (NetSuite, QuickBooks, Microsoft Dynamics 365, Acumatica, Cin7, Brightpearl, Linnworks, Zoho, Odoo), and 3PL/fulfillment tools (ShipBob, ShipHero, ShipStation). An Advanced CSV Connector covers systems without a native integration.
How is Inventory Planner priced?
Pricing is consultative and scales with gross merchandise volume and replenishable SKU count. A lower-cost Essentials tier is available to Shopify-only sellers via the Shopify App Store, while Standard and Premium tiers are typically quoted by sales.
Can it forecast demand for brand-new products with no sales history?
Yes. It estimates demand for new items by analyzing comparable existing products based on attributes such as style, size, color, and material.
Does it support multiple warehouses and 3PLs?
Yes. It provides purchasing and warehouse transfer recommendations across multiple locations and supports brick-and-mortar, Amazon FBA, and 3PL inventory types.
Compare Inventory Planner by Sage head-to-head
The Demand & Supply Planning Buyer's Guide
Before you commit to Inventory Planner by Sage, see how it sits against the 15 demand & supply planning systems we track — on capability, ERP integration depth and what each one actually charges for.
Demand & Supply Planning Buyer's Guide
15 systems compared · 2026
ERP Research
- Inventory Planner by Sage compared side-by-side with 14 alternatives
- ERP integration checklist — what to verify before you shortlist
- The pricing questions that change the quote
- A Inventory Planner by Sage evaluation brief, included with the guide
Demand & Supply Planning Buyer's Guide
Get pricing for Inventory Planner by Sage
Inventory Planner by Sage doesn't publish a price. Tell us your ERP, seat count and must-haves and we'll come back with an independent view of what it should cost you — and which alternatives are worth quoting alongside it.