In Appshare applications, icons are sometimes used instead of types information to make it quicker to understand information, to make screens more readable or to safe space on a screen.
The icons are part of the material ui icon set and generally refer to the same underlying element:
Document- or Order Number 
Pickslip Number 
Search 
Print 
Warehouse Location 
Shipment Number 
Lot Number 
Promised Delivery Date