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Sumtracker Inventory Sync: Pricing, Bundles and Replenishment Explained

Independent software profile · checked September 29, 2026. GNIZDO is not affiliated with Sumtracker, and this page contains no affiliate links.

Sumtracker describes itself as inventory management and replenishment software for ecommerce businesses. It keeps a central inventory, pushes available quantities to your Shopify, Amazon, Walmart, Etsy and eBay listings, deducts stock for bundles from their components, and, on its higher plan, forecasts demand and suggests what to reorder. It does not create or edit listings. Sellers usually evaluate it when the problem is stock accuracy, bundles or purchasing rather than listing management.

Software profile Central inventory → quantities pushed by SKU → reorder from forecasts

Sumtracker covers inventory and replenishment, not listings. Which side owns the stock number depends on the master mode you choose for each channel location.

Quick facts

Sumtracker at a glance, from Sumtracker's website and Help Center, checked September 29, 2026.
Scope Inventory quantities, bundles and replenishment. No listing creation or editing.
Pricing basis Order volume. The pricing page says sales orders per year; one help article says monthly volume. Manage from $50/month billed annually.
Sync model One direction per location: Sumtracker as master pushes quantities, or the store as master is copied into Sumtracker.
Identity key SKU. Listings with the same SKU share one inventory.
Bundles Included on both plans; bundle stock is calculated from components.
Replenishment Replenish plan: purchase orders, stock transfers, 12-month forecasting and reorder suggestions.

What Sumtracker does

Sumtracker's overview frames it around three problems: overselling, stock-outs and overstocking. In practice that means:

  • Inventory sync. One inventory in Sumtracker, with available quantities pushed to connected channels.
  • Bundles and kits. Bundle stock follows the stock of its components.
  • Stock tracking. Physical, booked, available and incoming stock across warehouses.
  • Replenishment. Forecasting, reorder suggestions and purchase orders on the Replenish plan.
  • Reports. Inventory and cost reporting.

What Sumtracker does not manage

Per Sumtracker's own documentation:

  • Listing creation. The pricing page states that Sumtracker “cannot create listings for your stores. It can only update the inventory.”
  • Names, images, selling prices and SKUs. The inventory sync article says these are not synced to your store. Only the available quantity is.
  • Outbound order updates. Order data flows into Sumtracker; it is not pushed back to your store.
  • Shipping and fulfillment. Sumtracker's official sources checked here do not describe a shipping-label or fulfillment workflow.

How inventory sync works

Based on Sumtracker's inventory sync, go-live and connect-your-store articles:

  • Sync starts off. Connecting a store imports your products, but inventory sync stays off until you turn it on. Only orders placed after sync is turned on flow into Sumtracker.
  • One direction per location. For each location, inventory flows one way, and you choose which side is the source of truth.
  • Warehouses must be connected to channel locations. Each store location is linked to a Sumtracker warehouse. If a channel is not connected to a warehouse, its orders still sync into Sumtracker but are not allocated to a warehouse, and inventory is not pushed back.
  • Only the available quantity is pushed. Sumtracker defines it as in stock minus booked.

Two master modes

For Shopify, Sumtracker documents two ways to run sync:

  • Sumtracker as master. All inventory adjustments must be made in Sumtracker, which pushes updated quantities to the store. Changes from purchase orders, manual adjustments and bundles flow out. If another app or a person changes the store's inventory directly, Sumtracker overrides that change.
  • Store as master. Sumtracker only copies inventory changes made in the store into Sumtracker and does not push stock back. Sumtracker notes most merchants choose Sumtracker as master; this mode is effectively read-only visibility.

Not every channel offers this choice. The eBay integration has no master toggle, and sync is simply on or off per store. See Channels.

SKU linking

Sumtracker uses the SKU as the single identifier to match products between your store and Sumtracker. Listings with the same SKU are treated as the same product with shared inventory, so a sale on any channel reduces that shared count. New store products whose SKU matches an existing Sumtracker SKU are linked automatically. For the same item sold under different SKUs, Sumtracker's Amazon article points to the bundles feature as the way to connect them.

The practical consequence is that SKU hygiene decides accuracy. Two different items that share a SKU will share one stock count, and the same item under two SKUs will not share stock unless you connect it deliberately.

Timing

Sumtracker's inventory sync article says inventory syncs “every few minutes automatically”, or “within few minutes or seconds” when you use the Refresh option. Its overview describes sync as real-time, and its eBay article says updates are pushed roughly every 7–8 minutes. These are Sumtracker's own descriptions, not independently measured latency, and they differ by channel.

Pricing

Sumtracker has two plans, Manage and Replenish. Both come with a 14-day free trial with no credit card, and up to 10 warehouses and 10 sales channels, with custom pricing beyond those limits.

Sumtracker prices per month by order tier, as published on sumtracker.com/pricing, checked September 29, 2026. Annual billing is discounted.
Orders per year (pricing page) Manage, monthly billing Manage, annual billing Replenish, monthly billing Replenish, annual billing
2,500$59$50$119$100
10,000$119$100$179$150
25,000$179$150$269$226
50,000$249$209$379$318
75,000$329$276$499$419
100,000$399$335$599$503
Above 100,000Contact Sumtracker for custom pricing

Confirm the billing meter before buying. Sumtracker's own sources currently describe it differently. The pricing page says plans are priced by “total number of sales orders in a year”, and says you move to the next plan when that annual limit is crossed. The connect-your-store help article says pricing is based on “your total monthly order volume across all connected stores”. The tier table above follows the pricing page. Ask Sumtracker which meter applies to your account.

The connect-your-store article adds that connecting additional stores costs nothing extra by itself: the meter is orders, not stores.

Bundles and kits

Bundles are listed on both plans. Sumtracker's bundle setup article defines a bundle as a finished product whose available inventory is calculated automatically from its components:

  • Available bundle stock is worked out from how many complete bundles the components on hand can build, and is synced to your store.
  • Component deduction. When an order for a bundle syncs in, Sumtracker deducts the component inventory.
  • The bundle SKU must exist first. The bundle product needs to exist in your store and be synced to Sumtracker before you set it up.
  • Fixed bundles. Sumtracker handles pre-configured bundles. For customer-customizable or mix-and-match bundles, the individual components need to appear as separate line items on the order.

Replenishment and purchasing

The two plans split at purchasing. Manage covers multichannel inventory sync, bundles, inventory adjustments, stocktake, barcode scanning, reports and API access. Replenish adds:

  • Forecasting. The forecasting and replenishment article says Sumtracker projects the next 12 months of sales from your past 12 months of data, supplier lead times and seasonality.
  • Reorder suggestions. Which products to reorder, how many and suggested reorder dates. Products can be added to a purchase order directly from the replenishment table.
  • Purchase orders. Raise POs with suppliers and track them through receiving. Per the purchase order article, receiving updates inventory on your store when sync is enabled, and updates landed cost. Existing POs can be migrated by CSV.
  • Stock transfers, warehouse-level permissions and QuickBooks integration, per the pricing page.

Replenishment is available only on the Replenish plan. Sumtracker notes it works best with at least one connected sales channel.

Channels

Sumtracker's integrations page lists Shopify and Shopify Plus, Amazon FBA and FBM, Etsy, eBay and Walmart. Channel behavior differs:

  • Shopify. Offers the two master modes described above.
  • Amazon. Per the Amazon article, FBA quantities are copied from Amazon read-only, because Amazon holds that stock. FBM listings receive inventory pushed from the FBM warehouse you manage in Sumtracker. You choose FBM, FBA or both when enabling sync.
  • eBay. Per the eBay and Etsy article, inventory sync only, with no master toggle; Sumtracker says it pushes updates roughly every 7–8 minutes.
  • Etsy. Order sync is required alongside inventory sync. Variant inventory can only be updated if Etsy's “Quantities vary” setting is on for that listing.

Where Sumtracker fits

  • Your problem is stock accuracy, bundles or purchasing, not listing creation.
  • You sell on some combination of Shopify, Amazon, Etsy, eBay and Walmart.
  • You sell bundles, kits or multipacks built from stocked components.
  • You want forecasting, reorder suggestions and purchase orders in the same tool as sync, and are willing to use the Replenish plan.
  • You can standardize SKUs so the same item has the same SKU everywhere.
  • You are comfortable making stock changes in Sumtracker rather than in each channel, if you run it as master.

Tradeoffs and things to verify

These are buying checks from Sumtracker's own documentation, not verdicts.

  • SKU discipline is fundamental. Shared SKUs merge stock; different SKUs for the same item do not share stock unless connected deliberately.
  • Listing management lives elsewhere. New listings, titles, images and prices stay in each channel or another tool.
  • Confirm the pricing meter. Sumtracker's pricing page and one help article currently describe it as annual and monthly order volume respectively.
  • Warehouse connections decide what gets pushed. A channel without a warehouse connection still imports orders but receives no inventory.
  • Master mode changes who may edit stock. With Sumtracker as master, direct store edits and other apps' changes are overridden.
  • Test real sync timing. Sumtracker's own wording ranges from seconds to roughly 7–8 minutes depending on channel.
  • Replenishment needs the higher plan. Forecasting, reorder suggestions, purchase orders and transfers are on Replenish, not Manage.

Sumtracker vs broader and narrower tools

Sumtracker is narrower than Sellbrite: it has no listing editor, and orders come in only to update stock and forecasts. It covers more inventory operations than Trunk, with warehouses, purchase orders, forecasting and reorder suggestions, while Trunk focuses on stock sync and bundles. Neither difference makes one tool better; they solve different jobs. If you are replacing Sellbrite, our Sellbrite alternatives comparison groups these tools by the job each one replaces.

Sumtracker and GNIZDO do different jobs

Sumtracker keeps a central inventory and pushes available quantities to your channels. GNIZDO is a detection-first inventory evidence layer. It observes each connected channel independently and keeps confirmed evidence of what each channel reports, with freshness and trust signals. It surfaces stock mismatches and unexpected changes, and gives a bounded conclusion for an operator to review.

GNIZDO does not replace Sumtracker and does not run cross-channel stock synchronization. It can sit alongside Sumtracker as an independent check: after a push, does each channel actually show the expected quantity, and is any channel stale? GNIZDO does not connect to Sumtracker; it reads the channels themselves.

The two identity models also do different jobs. For Sumtracker, a matching SKU is the rule that decides which listings share stock. GNIZDO's confirmed shared identity is fail-closed: an equal SKU alone is never treated as proof that two listings are the same product, and only an explicit user confirmation establishes it.

Check GNIZDO's current platform scope before relying on it:

  • WooCommerce stores can be connected today. WooCommerce also supports explicit, capability-gated per-item stock and price corrections that you start manually; nothing is synchronized automatically.
  • Etsy shops can be connected today, read-only and in beta.
  • Shopify is supported as a read-only runtime, but merchants cannot connect a Shopify store until GNIZDO's Shopify App Store listing is published.
  • eBay is planned. Amazon and Walmart are not supported.

Questions to ask before choosing

  • Is my problem stock accuracy, bundles and purchasing, or listing management?
  • Does each item have one SKU across all my channels, and does each SKU mean exactly one item?
  • Should Sumtracker or my store be the master for each location, and who will stop editing stock directly in the store?
  • Which store locations map to which Sumtracker warehouses?
  • Is my order volume billed per year or per month? Get the answer from Sumtracker in writing.
  • Do I need forecasting, reorder suggestions and purchase orders, and therefore the Replenish plan?
  • Are my bundles fixed, or do customers build their own?
  • During the trial, how quickly do sales and adjustments actually appear on each of my channels?

Sources and checked date

All Sumtracker facts on this page were checked against the sources below on September 29, 2026. Where a source shows its own last-updated date, it is noted. Vendor pricing and integrations change. Confirm them with Sumtracker before buying.

Related reading

Trunk software profile Stock-only sync, SKU linking and bundles. Sellbrite alternatives Tools grouped by the Sellbrite job each one replaces. Inventory management for multichannel sellers Why stock numbers drift across channels.