LMN cost codes link to QuickBooks service items to ensure that your LMN transactions (estimates, timesheets, invoices and payments) send financials to the correct chart of account. It's really easy to setup cost codes in LMN, but here's a really quick step-by-step guide to show you how to do it.
Step 1: Log into LMN Estimating
Step 2: Click on Estimate tab > Cost Codes > click on +New button
Step 3: Enter a cost code name and external ID (optional) then click OK
Note: Please refer to the following link for some sample cost codes