Making changes after your initial parse

Changing T12 line item mapping

In Excel: Go to the Financials tab. Find the line item in the yellow dropdown column. Change it to the correct category. Hit Save to Archer when done — this teaches the system your preference for next time.

On the web app: Go to the property, click on the T12 under the financials section. The mapping interface is the same as during the initial parse. Make your changes and they save automatically.

Both methods work. The Excel method is faster if you need to change multiple items (you can copy-paste dropdowns). The web app method saves automatically without needing to remember Save to Archer.

Changing rent roll details (floor plans, renovation status, bed/bath)

In Excel: Go to the Rent Roll Analysis tab. Find the floor plan section. Change renovation status, floor plan names, bed/bath counts in the appropriate columns. Changes you make in Archer's tabs (not your own model tabs) will train the system when you Save to Archer.

On the web app: Go to the property, click on the rent roll. Click the pencil icon next to any floor plan to expand individual units and make changes.

Uploading new or updated documents

Method 1 — Parse Document button: Go to the property on the web app, click Parse Document (not Run Underwrite). Upload the new file. Map it. Then go to your existing Excel model and click Refresh Data on the Archer ribbon. Your model updates with the new data while preserving your assumptions.

Method 2 — Excel ribbon: In your model, click the Archer ribbon, then Upload New T12 or Upload New Rent Roll. Parse the new file directly in Excel. Then hit Save to Archer.

Comparing old and new financials

After uploading a second T12 for the same property, use the Compare Financials button (top right on the property's financials view). Select the two periods you want to compare. Archer overlays them and highlights every line item that changed, plus NOI trends for the overlap period.

This is a great way to catch irregular accounting — if the seller gives you an updated T12 and a number in December changed from the previous version, Compare Financials flags it.

The key principle

You are never locked in. Every mapping, every label, every data point can be changed at any time — either on the web app or in Excel. The system learns from your corrections. The more deals you run, the fewer corrections you need.

Adding multiple years of financials to an existing underwrite

If you initially uploaded one T12 and now want to add a second or third year, go to the property on the web app and use Parse Document (not Run Underwrite) to upload the additional T12. After it's parsed and mapped, go to your Excel model, click Refresh Data on the Archer ribbon, and all saved T12s will pull through — giving you T24, T36, or T48 data. Do NOT use the Excel ribbon's "Upload New T12" button for this, as that replaces rather than adds alongside.