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Amazon Inventory Spreadsheets: Reporting & Automation

Written by Yash Bodane | Jan 20, 2026 7:15:59 AM

Amazon inventory spreadsheets start simple. Export a report, track stock levels, and update reorder points manually. This works at 50 SKUs and 20 orders daily.

At 200 SKUs and 100 orders daily, spreadsheets become a full-time job. You spend hours downloading reports, merging data, and fixing formulas that break when Amazon changes column headers.

By the time you update yesterday's inventory, today's sales have already changed the picture.

In this guide, you will learn how to build effective Amazon inventory spreadsheets, when to upgrade from manual tracking, and how automation eliminates the busywork.

Why accurate inventory data drives Amazon profits

Every profitable Amazon decision starts with accurate inventory data. Miss this, and you risk stockouts, lost sales, and account penalties.

Amazon inventory spreadsheets track stock levels, sales, returns, and profitability across your catalog. When your data is current, you can restock confidently, price competitively, and avoid costly mistakes. But when your spreadsheet lags behind reality, the risks are immediate.

For example, a seller downloads an inventory report at 9 AM. By noon, several fast-moving SKUs have sold out, but the spreadsheet still shows available stock.

Orders keep coming in, leading to overselling, order cancellations, and negative feedback. This chain reaction can trigger account health penalties and lost Buy Box eligibility.

Manual inventory management also drains time. And beyond wasted time, inaccurate inventory data creates financial blind spots:

  • Stockout costs: Missed sales when demand exists
  • Overselling penalties: Account suspensions and customer complaints
  • Storage fee surprises: Aging inventory you did not track
  • Profitability confusion: Not knowing which SKUs actually make money

Manual spreadsheets are where most sellers start, but leading businesses now rely on real-time data sync for accuracy.

To avoid these risks, you need to know which Amazon inventory spreadsheet to use and when.

Types of Amazon inventory spreadsheets and when to use each

Each Amazon inventory spreadsheet answers a specific business question. Using the right one saves time and prevents costly mistakes.

Amazon offers three core inventory reports in Seller Central. Knowing which to use and when turns confusion into clarity.

Report type

What it shows

When to use

Example use case

Inventory Health

Stock levels, aging inventory, storage fees, IPI score

Planning restocks, managing storage costs

Identify SKUs dragging down your IPI due to excess inventory

Active Listings

All active, inactive, and suppressed listings

Troubleshooting sales drops or visibility issues

Spot suppressed ASINs before they impact sales

Inventory Adjustments

Every inventory movement: receipts, removals, returns

Reconciling physical counts with system records

Trace discrepancies between warehouse and Seller Central

FBA Inventory

Multi-location stock, units per fulfillment center

Multi-warehouse visibility, transfer planning

Plan restocks across multiple Amazon warehouses

Table 1: Types of Amazon inventory spreadsheets

Once you know which report you need, here is how to access and manage them efficiently.

Suggested read: The Complete Guide to Amazon Seller SKU for 2025

How to download and manage Amazon inventory spreadsheets

Downloading and managing your Amazon inventory spreadsheets the right way saves hours and reduces errors.

Follow these steps to access and organize your Amazon inventory reports:

  1. Log in to Seller Central and go to Reports > Fulfillment.
  2. Select your report type (Inventory Health, Active Listings, Adjustments, or FBA Inventory).
  3. Set your parameters (date range, marketplace).
  4. Download your file as .txt for automation or .xlsx for manual review.
  5. Save with a clear naming convention: ReportType_YYYY-MM-DD_Marketplace.
  6. Organize files in a dedicated folder structure by year and month.
  7. Combine related reports (like Inventory Health and Adjustments) to spot discrepancies early.

Always date-stamp your files and store them in a secure, backed-up folder. This makes it easy to track changes, investigate issues, and maintain a reliable audit trail.

Manual downloads are manageable for small catalogs, but quickly become time-consuming as order volume grows.

Suggested read: 6 Amazon Accounting Problems for Sellers & Accountants

Common mistakes and pitfalls with manual spreadsheets

Manual spreadsheets introduce hidden costs and errors that can cripple your Amazon business as you scale.

The most common mistakes include:

  • Data entry errors: A single typo can lead to overselling. One seller lost $5,000 in a day after fulfilling orders based on a 24-hour-old Amazon inventory spreadsheet
  • Out-of-date inventory: Spreadsheets become stale within hours, causing stockouts, overselling, and risking account suspension
  • Multi-channel blind spots: Spreadsheets cannot track inventory across Amazon, Shopify, and eBay together, leading to discrepancies and missed sales
  • Profitability confusion: Manual tracking makes it hard to see true SKU-level profitability, especially after fees, returns, and COGS

Sellers who automate inventory and accounting save time on reconciliation and month-end close.

When these accounting mistakes start costing you money, it is time to consider automation.

When automation beats Amazon inventory spreadsheets

When manual Amazon inventory spreadsheets break down, automation delivers real-time accuracy, saves hours, and scales with your business.

Inventory management automation eliminates daily downloads and manual errors.

Instead of exporting CSVs and updating spreadsheets, automated tools sync inventory, orders, and returns across Amazon and other channels in real time. This prevents overselling, reduces stockouts, and ensures you always know your true inventory position.

Automation also connects inventory, sales, and fees directly to your accounting system (like QuickBooks or Xero), giving you true SKU-level profitability.

It also unlocks deeper insights. Here is how to turn your inventory data into smarter business decisions.

Turning inventory data into actionable insights

The right metrics turn raw inventory data into profit-driving insights, whether you use Amazon inventory spreadsheets or automation.

Focus on these key metrics:

  • Sell-through rate: How quickly you sell inventory over a set period
  • Stockout frequency: How often you run out of stock
  • Profitability by SKU: Net profit after fees, returns, and COGS
  • Inventory turnover: How many times you sell through your inventory in a year

For example, calculate your reorder point with this formula:

(Daily Sales × Lead Time) + Safety Stock

If your sell-through rate drops, investigate listing suppression or competitor pricing. Dashboards and reports (manual or automated) make it easier to spot trends and act quickly.

Webgility’s reporting dashboard gives you instant visibility into SKU and channel-level performance.

Use this checklist to understand when is the right time to make the switch.

When to move beyond spreadsheets: A checklist

If you check more than two boxes, it is time to consider real-time ecommerce automation:

  • Managing inventory across multiple channels
  • Spending hours each week on downloads or reconciliation
  • Experiencing frequent errors or delays
  • Cannot quickly see profitability by SKU
  • Inventory discrepancies causing lost sales or penalties
  • Needing to scale order volume without hiring

If you checked more than two boxes, it is time to consider real-time automation.

Webgility replaces Amazon inventory spreadsheets with real-time sync across Amazon, Shopify, eBay, POS systems, and QuickBooks.

It automatically tracks inventory levels, reserved quantities, SKU-level profitability, and reorder points without manual exports or formula maintenance.

Channie’s, a school accessories retailer selling on Amazon and eBay, wasted 2 hours daily updating spreadsheets and manually entering data into QuickBooks Online as their business scaled.

After implementing Webgility, they saved 60+ hours monthly, increased order volume by 250%, and gained real-time visibility into inventory and margins that spreadsheets could never provide.

Schedule a demo with Webgility today.

Frequently asked questions (FAQs)

How often should I update my Amazon inventory spreadsheet?

Ideally, update your spreadsheet at least daily. For fast-moving products or high sales volume, consider more frequent updates or automation to avoid stockouts and overselling.

Can automation tools sync inventory across multiple sales channels?

Yes. Leading automation tools sync inventory in real time across Amazon, Shopify, eBay, and more, reducing errors and preventing overselling.

Is it hard to switch from spreadsheets to automation?

No. Most automation platforms offer guided onboarding and integrations with Amazon and accounting systems, making the transition straightforward.

What are the risks of relying only on spreadsheets for inventory?

Manual spreadsheets can quickly become outdated, leading to stockouts, overselling, and inaccurate profitability tracking. Automation helps avoid these risks by keeping data current.