I suggest to check the Licensing Guide here:
go.microsoft.com/.../
With Device license any number of users can access a licensed device with individual logins without the
need for separate User SLs. If individual users share one login, their individual usage cannot be tracked.
Business Central device license is a limited license with a subset of Business Central capabilities.
Device SL Functionality
Point of Sale One device located in the Commerce location, used by any individual, for completing customer
facing sales of goods or services transactions
Store
Manager
One device located in the Commerce location, used by any individual, dedicated to performing
the following tasks solely for that Commerce location. Commerce location or Store means a
physical location (static or itinerant) operated by you when closing goods or services
transactions with customers:
• Managing and replenishing inventory
• Balancing cash registers and processing daily receipts
• Configuring and maintaining menu options displayed by the ISV Devices
• Purchasing supplies and services required to run the Commerce Location operations
• Managing Commerce Location staff
• Processing reports required to analyze and manage Commerce Location results
• Managing master data related to Commerce Location operations
Shop Floor
One device used for manufacturing shop-floor functions. 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)