Build Your Own
ACBuy Spreadsheet
Learn how to design and build a custom tracking system from scratch, tailored to your exact workflow and business model.
Why Build Instead of Download
Pre-made templates save time, but they carry assumptions about your workflow that may not match your reality. Building your own acbuy spreadsheet from scratch forces you to think through every column, every formula, and every status transition. The result is a system that feels intuitive because you designed it.
This guide is for resellers who enjoy tinkering, have unique tracking needs, or want to deeply understand how automation works before relying on it.
Architecture: The Five Core Tabs
Every professional reselling spreadsheet needs at least five interconnected tabs. Here is how to build each one.
- 1Config tab: Store currency, fee rates, shipping zones, and tax settings so formulas reference them dynamically.
- 2Orders tab: The main entry point. Columns for date, source, item, SKU, cost, status, platform, sale price, and profit.
- 3Inventory tab: Live stock view that pulls from Orders. Shows what is in hand, listed, or sold by category.
- 4Dashboard tab: Summary charts. Monthly profit, platform split, ROI by category, and pending action items.
- 5Import tab: A staging area for CSV uploads. Map columns once, then paste and validate before merging.
Essential Formulas to Master
You do not need to be a spreadsheet wizard. These five formulas power most of the automation.
Core Formula Toolkit
- Profit: =sale_price - purchase_price - fees - shipping
- ROI: =profit / purchase_price formatted as percentage
- Status Count: =COUNTIF(Orders!E:E, "Received") for inventory totals
- VLOOKUP: Pull item details from a reference SKU table automatically
- Conditional Formatting: Color-code negative profits and overdue orders
Testing and Hardening
Before trusting your sheet with real money, stress test it. Enter a fake order with zero cost, a fake order with missing data, and an order with extreme numbers. Watch how your formulas behave. Fix anything that breaks, warns incorrectly, or returns ugly errors.
| Tab | Purpose | Key Formula | Complexity |
|---|---|---|---|
| Config | Dynamic settings | Named ranges | Low |
| Orders | Data entry | Profit & ROI | Medium |
| Inventory | Live stock | COUNTIF + filters | Medium |
| Dashboard | Reports | SUMIF + charts | High |
| Import | Batch staging | ARRAYFORMULA | High |
Frequently Asked Questions
How long does it take to build from scratch?
A basic version takes 2–3 hours. A fully polished system with dashboards and automation takes 8–12 hours spread across a few days.
Should I learn formulas before starting?
Basic arithmetic and SUM are enough to start. Learn VLOOKUP, COUNTIF, and ARRAYFORMULA as you need them. Building while learning is more effective than studying in isolation.
Can I migrate data from a free template later?
Yes. Standardize the column names in your custom sheet to match your old template, then copy-paste the data. Just verify formulas recalculate correctly.
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