Based on the user roles required when using Mobile WMS, you can assess which license is needed. Learn the latest definitions from Microsoft by clicking the link here:
The short version is Operations-Activity or Operations-Device licenses will cover these functions listed below.
Shop Floor
One device used for manufacturing shop-floor functions:
Clock-in and clock-out
Starting and finishing production jobs (including project activities carried out on the shop floor)
Reporting progress
Materials consumption and completion
Viewing documents and instructions related to production jobs
Viewing worker holiday balances
Warehouse Device
One device used for warehousing functions:
Receiving
Putting away
Doing internal stock transfers
Picking, packing
Capturing product attributes
Shipping goods plus performing inventory count checks in the context of a warehouse management system
Posting output and materials consumption against production orders when captured as transfers of raw materials and finished goods between a warehouse and a production line. (All other types of transactions are excluded.)