When using Warehoues with Parts, you specify the products Warehouse during SO creation.

the one gatcha, is looking at Parts in Maintain or Inquiry screens is that ALL the Parts show by default

Example:

Warehouse1 = 40 Widgets

Warehouse2 = 50 Widgets

Warehouse3 = 10 Widgets

The screen will show the TOTAL widgets as 100

Until a user changes the look to their specific warehouse

so when the Las Vegas warehouse sells and invoices a widget do they have to manually select the LasVegas warehouse? Or can BW be set up to default to this warehouse ONLY when the widget is sold in LasVegas?

Yes you have to put in the Sales Order, see below, Each item can be shipped from different or the same Warehouse

I would try a out in one of the DEMO/SAMPLE companies, it would take a few hours to setup and try.

In my above screen grab, the product is only available in that warehouse so it is grayed out.  You would have to read up on the Warehouse processes, to learn how to assign parts to the different warehouses etc.

Also the thing about warehouses, once you start it is very difficult to change back to a single warehouse - see KB about going back to a single WH or merging warehouses

I would try a out in one of the DEMO/SAMPLE companies, it would take a few hours to setup and try.

In my above screen grab, the product is only available in that warehouse so it is grayed out.  You would have to read up on the Warehouse processes, to learn how to assign parts to the different warehouses etc.

Also the thing about warehouses, once you start it is very difficult to change back to a single warehouse - see KB about going back to a single WH or merging warehouses