If you want to track additional costs on an inventory item (repair, labor, polishing, unlocking, IMEI checks, ecommerce fees, etc) you can add those costs as inventory "line items" in WholeCell. This will increase the 'Total Cost' of the inventory item in your committed analytics.
Manually adding line items (one by one)
Click the item's WholeCell ID or ESN:
On this page, click the blue '+Add line item' button in the Financial section.
On the 'Add a Line Item' window, add the cost item, the price, and then hit 'Save'.
You will get back to the item's page, but this time with the new financial details.
Bulk-adding line items
You can add inventory line items in bulk by uploading a spreadsheet to a Process Batch. Here is the article Making Changes to Inventory on a Process Batch Via Spreadsheet Upload.
Only three columns are needed on your spreadsheet:
ESN or ID
Line Item Name
Line Item Cost
During the spreadsheet upload, make sure to tick the 'Add Line Item' box (see screenshot below).