Marketplace Ad Pros publishes this guide; MAP focuses on Amazon advertising and is not a demand-planning or forecasting tool, so it is not ranked here. Tools are compared on features, pricing, and public documentation.
Last updated: June 19, 2026
If you sell on Amazon FBA, the core jobs are forecasting demand, setting reorder points, generating purchase orders, staying inside FBA restock and capacity limits, tracking AWD, and avoiding aged storage fees. For deep Amazon-native forecasting with auto-PO generation and AWD tracking, SoStocked leads. RestockPro is strong for FBA restock and shipment workflow, while Sellerboard is the value pick that pairs profit analytics with reorder alerts. Helium 10 and Jungle Scout fold inventory into broader research suites. Cogsy fits fast-scaling DTC brands, and SkuVault or Linnworks handle multichannel warehouse operations at scale. Note that Forecastly was discontinued in late 2025 and is no longer available.
SoStocked (Carbon6 / SPS Commerce) -- Best for Amazon-native demand forecasting. Its forecast logic is configurable across sales velocity, seasonality, supplier lead times, and safety-stock buffers, and it adds auto-PO generation, overstock and aged-fee reports, and native AWD tracking. Pricing starts from around $158/mo and is tiered by order volume (verify on the live pricing page).
RestockPro (eComEngine) -- Best for FBA restock decisions and the PO/shipment workflow. It generates reorder alerts based on sales velocity, manages purchase orders and inbound shipments, and supports kitting and bundles. Pricing is tiered by monthly FBA order volume and is not published openly.
Sellerboard -- Best value. Primarily a profit-analytics tool, it backs that up with dependable inventory alerts: reorder timing built from lead time, buffer, and seasonality, plus low-stock alerts and automated FBA reimbursement recovery. Pricing starts from around $19/mo.
Helium 10 -- Best all-in-one suite where inventory is one module among many. Its Inventory Management module forecasts demand and reorder timing, and Inventory Protector caps units on promotions. Plans are reported at around $99/mo (Platinum) and $279/mo (Diamond).
Cogsy -- Best for fast-scaling DTC and omnichannel brands, with AI-driven replenishment and demand-scenario simulation, reported from around $199/mo. Being Shopify-first, it is lighter on FBA capacity and IPI depth than the Amazon-native specialists.
Jungle Scout -- Research-first suite with a competent Inventory Manager that handles demand prediction, reorder quantities, and restock alerts. The inventory features are gated to higher tiers, reported from around $79/mo.
InventoryLab -- FBA prep and accounting aimed at resellers and sourcing sellers, covering listing, prep workflow, and profit accounting. It is now part of Three Colts' Seller 365 bundle, reported from around $69/mo.
(also consider) SkuVault / Linnworks -- Multichannel and 3PL warehouse operations at scale rather than pure-FBA forecasting. They suit brands running multiple sales channels and physical warehouses, with custom or volume-based pricing.
Discontinued: Forecastly was shut down alongside Viral Launch in late 2025 and is no longer available. If you see it recommended in an older list, skip it.
| Tool | Primary category | Demand forecasting | Reorder points & PO generation | AWD tracking | Restock/IPI capacity visibility | Aged/storage-fee alerts | Multichannel/3PL | Starting price |
|---|---|---|---|---|---|---|---|---|
| SoStocked | Amazon demand planning | Yes | Yes | Yes | Yes | Yes | Limited | from ~$158/mo |
| RestockPro | FBA restock & PO workflow | Limited | Yes | No | Yes | Limited | No | Tiered (not public) |
| Sellerboard | Profit analytics + alerts | Limited | Limited | No | Limited | Yes | Limited | from ~$19/mo |
| Helium 10 | All-in-one suite | Yes | Limited | No | Yes | Yes | No | ~$99/mo |
| Cogsy | DTC/omnichannel planning | Yes | Yes | No | Limited | Limited | Yes | ~$199/mo |
| Jungle Scout | Research-first suite | Yes | Limited | No | Limited | Limited | No | ~$79/mo+ |
| InventoryLab | FBA prep + accounting | Limited | Limited | No | Limited | Limited | No | ~$69/mo |
| SkuVault / Linnworks | Multichannel/3PL ops | Limited | Yes | No | No | No | Yes | Custom |
Marketplace Ad Pros is not a demand-planning or forecasting tool, and it is not ranked above for that reason. If you already use MAP for Amazon Ads, it can also read your inventory state through the Selling Partner API and let you query it in plain language inside Claude or ChatGPT:
It surfaces the numbers; it does not forecast demand, compute reorder points, or generate POs. Pair it with one of the dedicated tools above for that.
Need deep, customizable Amazon-native forecasting with auto-POs and AWD tracking? SoStocked is the standout.
For sellers focused on FBA restock decisions and managing inbound shipments, RestockPro is built around that workflow.
Want profit clarity plus dependable reorder and low-stock alerts on a budget? Sellerboard is the value pick.
If you are already in Helium 10 or Jungle Scout for research and PPC, their inventory modules may be enough without adding another subscription.
Scaling a DTC or omnichannel brand beyond Amazon? Look at Cogsy, or at SkuVault or Linnworks for warehouse operations at scale.
Amazon's Inventory Performance Index (IPI) runs from 0 to 1000 and reflects how well you balance in-stock rates, excess inventory, sell-through, and stranded inventory. As of 2026, the minimum is around 400, but Amazon has changed this before, so verify the current threshold in Seller Central. The higher above the minimum you sit, the more storage capacity and flexibility you get.
As of 2026, Amazon uses two related controls. Storage capacity is measured in cubic feet and set on a roughly quarterly basis, with overage charges if you exceed it. Restock limits cap how many units you can send in, generally sized to about five months of projected sales and returned at the ASIN level. Both move over time, so check your current allowances and restock limits in Seller Central rather than relying on fixed numbers or dates.
Amazon Warehousing & Distribution (AWD) is Amazon's bulk upstream storage and distribution service. You store inventory in low-cost AWD warehouses, and AWD automatically replenishes your FBA stock as it sells down, which helps with restock limits and seasonal buffers. Among the ranked tools, SoStocked offers native AWD tracking. Separately, if you already use Marketplace Ad Pros for ads, MAP can read your AWD warehouse on-hand and inbound and AWD-to-FBA replenishment status (including why a SKU isn't replenishing) through the Selling Partner API, though it does not forecast or replenish for you.
Yes. Helium 10's Inventory Management module forecasts demand, suggests reorder timing and quantities, and sends low-stock alerts, and Inventory Protector caps units on promotions. It is one module inside a broad research and PPC suite rather than a dedicated demand-planning platform, so brands with complex forecasting needs may prefer a specialist like SoStocked.
For Amazon-native demand forecasting, SoStocked is the standout because you can customize forecast logic around velocity, seasonality, lead times, and buffers, then generate POs from it. Cogsy is a strong alternative for fast-scaling DTC and omnichannel brands wanting AI replenishment and scenario simulation. Sellerboard covers reorder timing well at a lower price if you do not need deep custom forecasting.
Amazon adds aged-inventory (long-term) storage surcharges on units that sit past certain age thresholds, and these tiers have changed over time, so confirm the current schedule in Seller Central. Watch sell-through, send in quantities sized to demand, run markdowns or removals on slow movers before they age, and use AWD for bulk upstream storage. Aged-fee alerts from SoStocked, Sellerboard, or Helium 10 flag at-risk units before the surcharge lands.
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