Before setting up the revenue centers in the Mini POS, you need to create accounts for those centers and for each items that you will sold. The Mini POS pre-setup is made of 2 creation steps: the house account(s) and the accounting codes.
Create House Account(s) for the Revenue Centers
The POS uses House Accounts in Visual Matrix for the Revenue Centers. This means that the tickets need to be closed out before an Audit can be run. The House Accounts need to be created in VM before setting up the Revenue Centers.
Path: Management > Rooms > House Accounts.

You need to create a Guest Ledger House Account for each Revenue Center you will create in the POS.
1. Click New.
2. Enter a House Acct Code and Description in the new empty line.
3. Click Save.
Create Accounting Codes
Path: Management > Accounting Settings > Setup Code.

If you intend to create a Restaurant type Revenue Center, make sure you also create a Tip Accounting Code.