Checking Professional access…
Free Diagnostic

Analyse your customers and products.

Start with ordinary transaction data. eightytwentyplus will validate the source, reconcile the numbers and show where concentration, relationships, dependency and complexity deserve attention.

What you need

Start with a normal Product × Customer transaction export. You do not need to prepare an analyst-ready model.

MinimumProduct ID · Customer ID · Quantity · Revenue · Product Category
Helpful optional fieldsProduct Description · Product Type · Order ID · Date · Total Cost · Location
Your data stays on this device

The local diagnostic analyses the source in your browser. Your working source, mapping and current diagnostic are retained in this browser so a page reload does not lose your work. eightytwentyplus does not upload your source file to a server.

Step 1 · Upload

Start a New Diagnostic

Choose the source file first. We will summarise it before asking you to confirm any mapping.