Hello Brian,
You can access WMS Express from App Source by searching in the Extension Marketplace in Business Central, or by accessing it from our WMS Express page. WMS Express is the free version of Warehouse Insight Advanced WMS; if you install Warehouse Insight Advanced WMS, you will be prompted for a free trial.
In Business Central SaaS environments, WMS Express and Warehouse Insight Advanced WMS may require a one-time granting of consent by an Azure administrator for your Business Central environment. This can most easily be accomplished by signing in with an Azure administrator to grant consent when prompted on the scanner.
Thank you,