OpsMavix · Insights

Where operations quietly leak — and how to fix it.

Field notes for businesses too messy for spreadsheets, not ready for a full ERP. Inventory, orders, production, reporting — the practical system layer.

A split diagram contrasting a perpetual inventory record updating with every movement against a periodic record that only refreshes at a period-end physical count
13 min read

Perpetual vs Periodic Inventory: Which Is Right for Your Business?

Perpetual vs periodic inventory is a choice about when your stock figure is true — continuously, or only at a count. This guide compares both on cost, accuracy and effort, shows which fits which business size, and counts the hidden cost of flying blind between counts.

25 July 2026  ·  Read →
A shipping container and a stock shelf joined by a cost breakdown showing freight, duty and handling added to product price.
10 min read

Landed Cost: How to Calculate the True Cost of Imported Stock

Landed cost is the true, all-in cost of getting a product from a supplier to your shelf — product, freight, insurance, duty, handling and more. This guide gives you the full formula, a worked example in pounds, and shows why ignoring landed cost quietly destroys margin on imported lines.

25 July 2026  ·  Read →
A warehouse shelf split into consigned stock still owned by the supplier and owned stock on the books, tracked as one system
13 min read

Consignment Stock: How It Works and How to Manage It

Consignment stock is inventory that sits in one company's warehouse but stays owned by the supplier until it sells. This post explains who owns it, the cash-flow benefit for both sides, the UK VAT and accounting nuance most guides skip, and why mixing consigned and owned stock quietly wrecks your numbers — plus how an owned system tracks consignment separately without a second spreadsheet.

25 July 2026  ·  Read →
A min and max threshold pair set per SKU on a live inventory dashboard, with an order-up-to-max quantity calculated automatically
14 min read

The Min/Max Inventory System: How It Works and When to Use It

A min/max inventory system sets two levels per line — a minimum that triggers a reorder and a maximum you top back up to. This guide covers the order-up-to-max formula with a worked example, how min/max compares to reorder point and EOQ, where the method breaks on demand swings and moving lead times, and how an owned system re-tunes the thresholds per SKU instead of leaving them to rot.

25 July 2026  ·  Read →
A stock-level bar split into committed demand, uncommitted available-to-promise, and inbound supply arriving on a future date
14 min read

Available to Promise (ATP): What It Is and How to Calculate It

Available to promise (ATP) is the portion of your stock and inbound supply that isn't already spoken for — the quantity you can safely sell without overselling. This post gives you the ATP formula plainly (on-hand + inbound supply − committed demand), a worked example, and why gut-feel promising causes oversells and backorders. It also shows why a spreadsheet can't keep ATP current and how a live owned system computes it per line automatically.

25 July 2026  ·  Read →
A goods received note being completed at a warehouse receiving bay, quantities checked against a purchase order before the delivery is booked in
12 min read

What Is a Goods Received Note (GRN)? A Practical Guide

A goods received note is the buyer's own record of what physically turned up against a purchase order — not what was ordered, not what the supplier says was sent. This guide covers what goes on a GRN, how it feeds three-way matching, and why the document quietly fails on spreadsheets and email.

25 July 2026  ·  Read →
A small operations team reviewing orders and stock on a single connected screen instead of a heavy ERP dashboard.
7 min read

The NetSuite Alternative Between a Spreadsheet and an ERP

Most businesses hunting for a NetSuite alternative have outgrown spreadsheets but are nowhere near needing a full ERP. This is the honest case for the right-sized middle: one owned operations system shaped to how you already work, instead of a platform you spend two years growing into.

24 July 2026  ·  Read →
A packing bench with a shipping screen on one side and a joined-up orders, stock and purchasing system on the other
7 min read

The Ordoro Alternative: Orders, Stock and Shipping Joined Up

Ordoro is genuinely strong shipping-and-inventory software with real dropshipping depth. But if your real leak is purchasing, production and reporting drifting apart from the pack bench, the best Ordoro alternative isn't another labels tool — it's one operations system shaped to how you actually run.

24 July 2026  ·  Read →
A small-team cloud inventory tool on one side and a right-sized owned operations system shaped to how a growing business actually runs on the other
7 min read

The Megaventory Alternative With Room to Actually Grow

Megaventory is a capable cloud inventory, order and light-manufacturing tool for small teams — until per-user pricing, transaction caps and shallow process depth start bending your operation around the software. This is the honest guide to when a Megaventory alternative makes sense, and why the real one is often an owned operations system rather than the next subscription.

24 July 2026  ·  Read →