I would like to see how you create an invoice with Inventory Items and with expenses like Freight
Then how you enter the invoice for that freight from a supplier
Read the Guides, which should always be your first resource:
https://www.manager.io/guides/7178
https://www.manager.io/guides/9610
You have described two distinct situations:
- Charging customers for freight expenses
- Recording charges for freight from suppliers
Both are covered in the Guides linked above.
https://www.manager.io/guides/11111
https://www.manager.io/guides/7189
https://www.manager.io/guides/9610
oops, beaten to it by Tut
By the way, @Benefel, the phrase billable expenses has a specific meaning in Manager. See these Guides:
Record billable expenses | Manager.
Invoice billable expenses | Manager