*Source: Marketplace Ad Pros — canonical version at https://marketplaceadpros.com/guides/best-amazon-inventory-restock-tools/*

# Best Amazon Inventory & Restock Management Tools in 2026: Compared

## What is the best Amazon inventory management tool in 2026?

For deep Amazon-native forecasting with auto-PO generation and AWD tracking, **SoStocked** leads. **RestockPro** is strong for FBA restock and shipment workflow, and **Sellerboard** is the value pick, pairing profit analytics with reorder alerts. **Helium 10** and **Jungle Scout** fold inventory into broader research suites. **Cogsy** fits fast-scaling DTC brands, while **SkuVault** and **Linnworks** handle multichannel warehouse operations at scale. Forecastly was discontinued in late 2025.

*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: October 14, 2026*

## The dedicated tools, ranked

1. **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).

2. **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.

3. **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.

4. **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. Platinum is $129/mo billed monthly or $99/mo billed yearly; Diamond is $359/mo billed monthly or $279/mo billed yearly. <a href="https://www.helium10.com/pricing/" target="_blank">Helium 10 pricing</a>

5. **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.

6. **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.

7. **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.

8. **(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.

## Comparison table

| 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 |

## Which inventory tools send automatic restock alerts?

RestockPro, Sellerboard, Helium 10, and Jungle Scout all send restock or low-stock alerts, and SoStocked turns its forecast into reorder recommendations and purchase orders. The difference is what the alert is built from. A useful alert counts units already inbound, uses your supplier lead time, and reads sales velocity over a window that matches your seasonality. An alert built only from on-hand units fires too late for a product with a 60-day lead time.

| Tool | What the alert does | What it is built from |
|------|---------------------|-----------------------|
| RestockPro | Reorder alerts tied to the PO and inbound-shipment workflow | Sales velocity |
| Sellerboard | Low-stock alerts plus reorder timing | Lead time, buffer, and seasonality |
| Helium 10 | Low-stock alerts and reorder timing in its Inventory Management module | Demand forecast |
| Jungle Scout | Restock alerts in its Inventory Manager (higher tiers) | Demand prediction |
| SoStocked | Reorder recommendations and generated POs, plus aged-fee alerts | Custom forecast (velocity, seasonality, lead time, buffers) |

Before you trust any restock alert, check how it handles these:

1. **Inbound units.** Units already shipped to Amazon should count toward cover, and units in a plan that hasn't shipped usually shouldn't.
2. **Supplier lead time.** The alert has to fire a full lead time before the stockout, not when you hit zero.
3. **Velocity window.** A 7-day window overreacts to a promotion; a 90-day window misses a trend. Pick the window that fits your seasonality.
4. **Reserved units.** Units reserved for customer orders or FC transfers aren't available to sell.
5. **Restock limits.** An alert that tells you to send more than your restock limit allows isn't actionable.
6. **Every marketplace.** A product can be fine in the US and out of stock in Canada.

## If you also run ads: a complement, not a replacement

**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:

- FBA on-hand, inbound, and reserved units
- FBA inbound eligibility
- AWD warehouse on-hand and inbound, plus AWD-to-FBA replenishment status, including why a SKU isn't replenishing (AWD requires a Seller Central integration and the read-AWD permission)
- Vendor purchase-order status
- Vendor inventory health (on-hand, weeks of cover, aged inventory) via the report analyst

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.

MAP also has one inventory alert: **FBA Stockout Watch**, a notification you can turn on for any brand with Seller Central connected (not Vendor-only brands). It runs daily by default and emails you the products at risk, ranked by effective days of supply: fulfillable plus inbound units, divided by average daily units sold over the last 30 days. You can alert by risk tier or set your own day threshold. It covers FBA only, skips products with no sales in the last 30 days, and doesn't count reserved units or shipments you've planned but not sent. It tells you a product is running low; it doesn't tell you how much to reorder.

## How to pick

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.

Whichever you pick, check your Subscribe & Save offers separately if you run them. Amazon forecasts subscriber deliveries ahead of time, and an offer whose eligibility has changed stops accepting new subscribers, often silently. See [how to audit your Amazon Subscribe & Save offers](/guides/amazon-subscribe-and-save-audit/).

## Frequently asked questions

### Which Amazon inventory tools send automatic restock alerts?

RestockPro sends reorder alerts based on sales velocity, Sellerboard sends low-stock alerts and reorder timing built from lead time, buffer, and seasonality, and Helium 10 and Jungle Scout include low-stock or restock alerts in their inventory modules. SoStocked goes further and turns its forecast into reorder recommendations and purchase orders. Whichever you choose, check that the alert counts inbound units and your supplier lead time, or it will fire too late to reorder in time.

### What is a good IPI score in 2026?

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 threshold to avoid storage-capacity restrictions is around 400, but Amazon has changed this number before, so verify the current threshold in Seller Central. Scores well above the minimum give you more storage capacity and fewer restock limits.

### How do FBA restock and capacity limits work in 2026?

As of 2026, Amazon governs FBA inventory with two related controls. Storage is limited by a capacity allowance 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 in Seller Central. Both can move month to month, so check your current allowances and restock limits in Seller Central rather than relying on fixed figures.

### What is AWD (Amazon Warehousing & Distribution)?

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.

### Does Helium 10 do inventory forecasting?

Yes. Helium 10 includes an Inventory Management module that forecasts demand, suggests reorder timing and quantities, and sends low-stock alerts, plus Inventory Protector to cap units on promotions. It is one module within 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.

### What's the best tool for demand forecasting specifically?

For Amazon-native demand forecasting, SoStocked is the standout: it lets you customize forecast logic around sales velocity, seasonality, supplier lead times, and safety-stock buffers, then generates purchase orders from the forecast. Cogsy is a strong alternative for fast-scaling DTC and omnichannel brands that want AI replenishment and demand-scenario simulation. Sellerboard offers solid reorder timing at a lower price if you do not need deep custom forecast logic.

### How do I avoid Amazon long-term and aged storage fees?

Amazon charges aged-inventory (long-term) storage surcharges on units that sit in fulfillment centers past certain age thresholds, and these tiers have changed over time, so confirm the current schedule in Seller Central. To avoid them, watch sell-through, send in quantities sized to demand rather than overstocking, run markdowns or removals on slow movers before they age into surcharge tiers, and use AWD for bulk upstream storage. Aged-fee alerts from tools like SoStocked, Sellerboard, or Helium 10 flag at-risk units before the surcharge hits.

## Related guides

- [Amazon Selling Partner API (SP-API) explained](/guides/amazon-selling-partner-api-sp-api-explained/)
- [Best Amazon ads management tools in 2026](/guides/best-amazon-ads-management-tools/)
- [Best Amazon market intelligence & data tools in 2026](/guides/best-amazon-market-intelligence-data-tools/)
- [Amazon Prime Day 2026 ad benchmarks](/guides/amazon-prime-day-2026-ad-benchmarks/)
- [How to have your Amazon Ads agent call your distributor](/guides/amazon-ads-agent-call-your-distributor/)

## Sources

1. [Amazon Warehousing & Distribution (AWD)](https://sell.amazon.com/programs/warehousing)
2. [Amazon Warehousing and Distribution API](https://developer-docs.amazon.com/sp-api/docs/amazon-warehousing-and-distribution-api)
3. [SoStocked (SPS Commerce)](https://www.spscommerce.com/products/sostocked/)
4. [eComEngine pricing (RestockPro)](https://www.ecomengine.com/pricing)
5. [Sellerboard](https://sellerboard.com/)
6. [Helium 10 pricing](https://www.helium10.com/pricing/)

Pricing above was checked against each vendor's published pricing page on August 4, 2026.

---

[Already running Amazon Ads? Connect MAP to read your inventory inside Claude or ChatGPT -- free integration](https://app.marketplaceadpros.com/signup)