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Inventory questiondo i need an inventory planner or can i manage with spreadsheets

Do I need an inventory planner or can I manage with spreadsheets?

You can manage with spreadsheets for a while, but once inventory decisions depend on faster updates, multiple locations, or repeatable purchase-order logic, a dedicated planner becomes the safer system. Spreadsheets are common, but they break down when demand, lead times, and inventory workflows change faster than a team can update cells.

60%+ still use spreadsheetsShopify internal survey

Overview

Many merchants start in spreadsheets because they are flexible, cheap, and familiar. In fact, more than 60% of Shopify merchants use spreadsheets for inventory tracking. The problem is not that spreadsheets are bad; it is that they become fragile as SKU counts, suppliers, locations, and replenishment decisions multiply. At that point, the cost of manual control exceeds the cost of proper systems.

Spreadsheets are fine until the workflow stops being simple

A spreadsheet can work when your team reviews Shopify Analytics → Sales by product, Admin → Products → Inventory, and Admin → Purchase orders on a single weekly cadence. Once that review loop becomes too slow for real demand changes, the spreadsheet is no longer the right control system.

Multi-location and transfers change the game

The moment inventory lives across more than 3 locations, manual coordination becomes far more error-prone because stock can be available in total and still missing in the selling node. Admin → Transfers and Admin → Products → Inventory expose this complexity quickly, and that is where a planner starts outperforming spreadsheets.

Forecasting and reorder logic are hard to maintain manually

Spreadsheets struggle when you need to maintain reorder points, safety stock, and forecast accuracy across many SKUs while lead times vary by 20–30%. A planner can continuously update those rules using Shopify Analytics → Sales by product and structured PO workflows instead of relying on manual formulas and copy-paste.

Stocky’s retirement removes the middle ground

Stocky, Shopify's native inventory planning app, is being discontinued on August 31, 2026, and Shopify is not replacing its purchase order automation, min/max logic, or demand forecasting natively. If you have already outgrown spreadsheets, that deadline is a strong signal to move to a third-party planner like Synplex instead of trying to stretch sheets further.

How to apply this in Shopify

  • Use Shopify Analytics → Sales by product as the baseline source of truth before deciding whether your spreadsheet process still keeps up.

  • Review Admin → Purchase orders and ask whether your team can still track every open PO accurately without version-control issues.

  • Check Admin → Products → Inventory by location to see whether spreadsheet-based stock visibility still matches reality.

  • Use Admin → Transfers to assess how much inter-location movement your process needs to coordinate each week.

  • Turn on Admin → Settings → Notifications → Low stock alerts, but do not confuse alerts with a full planning workflow.

Common mistakes

Assuming spreadsheets are free

The software cost may be low, but manual updates, formula drift, version conflicts, and missed reorders create real operational cost.

Fix: Estimate the time spent every week maintaining sheets and compare it to the value of automated planning and cleaner decisions.

Waiting until the process breaks completely

Many teams only replace spreadsheets after a serious stockout, overspend, or month-end reconciliation failure.

Fix: Move to a planner when complexity rises, not only after an avoidable inventory failure.

Thinking low stock alerts equal planning

Alerts help, but they do not calculate demand forecasts, supplier lead time risk, or optimal PO quantities.

Fix: Use alerts as a backstop and a planner like Synplex for actual forecasting, replenishment, and PO decision support.

Delaying the Stocky migration

Teams using Stocky as a half-step between spreadsheets and real planning risk disruption if they wait until late August 2026.

Fix: Start migrating early so your planners, buyers, and finance team can validate new workflows before Stocky shuts down.

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